Laravel includes a variety of global "helper" PHP functions. Many of these functions are used by the framework itself; however, you are free to use them in your own applications if you find them convenient.
<style> .collection-method-list > p { columns: 10.8em 3; -moz-columns: 10.8em 3; -webkit-columns: 10.8em 3; } .collection-method-list a { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; } </style>Arr::accessible Arr::add Arr::collapse Arr::crossJoin Arr::divide Arr::dot Arr::except Arr::exists Arr::first Arr::flatten Arr::forget Arr::get Arr::has Arr::hasAny Arr::isAssoc Arr::isList Arr::join Arr::keyBy Arr::last Arr::map Arr::mapSpread Arr::mapWithKeys Arr::only Arr::pluck Arr::prepend Arr::prependKeysWith Arr::pull Arr::query Arr::random Arr::set Arr::shuffle Arr::sort Arr::sortDesc Arr::sortRecursive Arr::take Arr::toCssClasses Arr::toCssStyles Arr::undot Arr::where Arr::whereNotNull Arr::wrap data_fill data_get data_set data_forget head last
Number::abbreviate Number::clamp Number::currency Number::defaultCurrency Number::defaultLocale Number::fileSize Number::forHumans Number::format Number::ordinal Number::pairs Number::percentage Number::spell Number::trim Number::useLocale Number::withLocale Number::useCurrency Number::withCurrency
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The Arr::accessible
method determines if the given value is array accessible:
use Illuminate\Support\Arr;
use Illuminate\Support\Collection;
$isAccessible = Arr::accessible(['a' => 1, 'b' => 2]);
// true
$isAccessible = Arr::accessible(new Collection);
// true
$isAccessible = Arr::accessible('abc');
// false
$isAccessible = Arr::accessible(new stdClass);
// false
The Arr::add
method adds a given key / value pair to an array if the given key doesn't already exist in the array or is set to null
:
use Illuminate\Support\Arr;
$array = Arr::add(['name' => 'Desk'], 'price', 100);
// ['name' => 'Desk', 'price' => 100]
$array = Arr::add(['name' => 'Desk', 'price' => null], 'price', 100);
// ['name' => 'Desk', 'price' => 100]
The Arr::collapse
method collapses an array of arrays into a single array:
use Illuminate\Support\Arr;
$array = Arr::collapse([[1, 2, 3], [4, 5, 6], [7, 8, 9]]);
// [1, 2, 3, 4, 5, 6, 7, 8, 9]
The Arr::crossJoin
method cross joins the given arrays, returning a Cartesian product with all possible permutations:
use Illuminate\Support\Arr;
$matrix = Arr::crossJoin([1, 2], ['a', 'b']);
/*
[
[1, 'a'],
[1, 'b'],
[2, 'a'],
[2, 'b'],
]
*/
$matrix = Arr::crossJoin([1, 2], ['a', 'b'], ['I', 'II']);
/*
[
[1, 'a', 'I'],
[1, 'a', 'II'],
[1, 'b', 'I'],
[1, 'b', 'II'],
[2, 'a', 'I'],
[2, 'a', 'II'],
[2, 'b', 'I'],
[2, 'b', 'II'],
]
*/
The Arr::divide
method returns two arrays: one containing the keys and the other containing the values of the given array:
use Illuminate\Support\Arr;
[$keys, $values] = Arr::divide(['name' => 'Desk']);
// $keys: ['name']
// $values: ['Desk']
The Arr::dot
method flattens a multi-dimensional array into a single level array that uses "dot" notation to indicate depth:
use Illuminate\Support\Arr;
$array = ['products' => ['desk' => ['price' => 100]]];
$flattened = Arr::dot($array);
// ['products.desk.price' => 100]
The Arr::except
method removes the given key / value pairs from an array:
use Illuminate\Support\Arr;
$array = ['name' => 'Desk', 'price' => 100];
$filtered = Arr::except($array, ['price']);
// ['name' => 'Desk']
The Arr::exists
method checks that the given key exists in the provided array:
use Illuminate\Support\Arr;
$array = ['name' => 'John Doe', 'age' => 17];
$exists = Arr::exists($array, 'name');
// true
$exists = Arr::exists($array, 'salary');
// false
The Arr::first
method returns the first element of an array passing a given truth test:
use Illuminate\Support\Arr;
$array = [100, 200, 300];
$first = Arr::first($array, function (int $value, int $key) {
return $value >= 150;
});
// 200
A default value may also be passed as the third parameter to the method. This value will be returned if no value passes the truth test:
use Illuminate\Support\Arr;
$first = Arr::first($array, $callback, $default);
The Arr::flatten
method flattens a multi-dimensional array into a single level array:
use Illuminate\Support\Arr;
$array = ['name' => 'Joe', 'languages' => ['PHP', 'Ruby']];
$flattened = Arr::flatten($array);
// ['Joe', 'PHP', 'Ruby']
The Arr::forget
method removes a given key / value pair from a deeply nested array using "dot" notation:
use Illuminate\Support\Arr;
$array = ['products' => ['desk' => ['price' => 100]]];
Arr::forget($array, 'products.desk');
// ['products' => []]
The Arr::get
method retrieves a value from a deeply nested array using "dot" notation:
use Illuminate\Support\Arr;
$array = ['products' => ['desk' => ['price' => 100]]];
$price = Arr::get($array, 'products.desk.price');
// 100
The Arr::get
method also accepts a default value, which will be returned if the specified key is not present in the array:
use Illuminate\Support\Arr;
$discount = Arr::get($array, 'products.desk.discount', 0);
// 0
The Arr::has
method checks whether a given item or items exists in an array using "dot" notation:
use Illuminate\Support\Arr;
$array = ['product' => ['name' => 'Desk', 'price' => 100]];
$contains = Arr::has($array, 'product.name');
// true
$contains = Arr::has($array, ['product.price', 'product.discount']);
// false
The Arr::hasAny
method checks whether any item in a given set exists in an array using "dot" notation:
use Illuminate\Support\Arr;
$array = ['product' => ['name' => 'Desk', 'price' => 100]];
$contains = Arr::hasAny($array, 'product.name');
// true
$contains = Arr::hasAny($array, ['product.name', 'product.discount']);
// true
$contains = Arr::hasAny($array, ['category', 'product.discount']);
// false
The Arr::isAssoc
method returns true
if the given array is an associative array. An array is considered "associative" if it doesn't have sequential numerical keys beginning with zero:
use Illuminate\Support\Arr;
$isAssoc = Arr::isAssoc(['product' => ['name' => 'Desk', 'price' => 100]]);
// true
$isAssoc = Arr::isAssoc([1, 2, 3]);
// false
The Arr::isList
method returns true
if the given array's keys are sequential integers beginning from zero:
use Illuminate\Support\Arr;
$isList = Arr::isList(['foo', 'bar', 'baz']);
// true
$isList = Arr::isList(['product' => ['name' => 'Desk', 'price' => 100]]);
// false
The Arr::join
method joins array elements with a string. Using this method's second argument, you may also specify the joining string for the final element of the array:
use Illuminate\Support\Arr;
$array = ['Tailwind', 'Alpine', 'Laravel', 'Livewire'];
$joined = Arr::join($array, ', ');
// Tailwind, Alpine, Laravel, Livewire
$joined = Arr::join($array, ', ', ' and ');
// Tailwind, Alpine, Laravel and Livewire
The Arr::keyBy
method keys the array by the given key. If multiple items have the same key, only the last one will appear in the new array:
use Illuminate\Support\Arr;
$array = [
['product_id' => 'prod-100', 'name' => 'Desk'],
['product_id' => 'prod-200', 'name' => 'Chair'],
];
$keyed = Arr::keyBy($array, 'product_id');
/*
[
'prod-100' => ['product_id' => 'prod-100', 'name' => 'Desk'],
'prod-200' => ['product_id' => 'prod-200', 'name' => 'Chair'],
]
*/
The Arr::last
method returns the last element of an array passing a given truth test:
use Illuminate\Support\Arr;
$array = [100, 200, 300, 110];
$last = Arr::last($array, function (int $value, int $key) {
return $value >= 150;
});
// 300
A default value may be passed as the third argument to the method. This value will be returned if no value passes the truth test:
use Illuminate\Support\Arr;
$last = Arr::last($array, $callback, $default);
The Arr::map
method iterates through the array and passes each value and key to the given callback. The array value is replaced by the value returned by the callback:
use Illuminate\Support\Arr;
$array = ['first' => 'james', 'last' => 'kirk'];
$mapped = Arr::map($array, function (string $value, string $key) {
return ucfirst($value);
});
// ['first' => 'James', 'last' => 'Kirk']
The Arr::mapSpread
method iterates over the array, passing each nested item value into the given closure. The closure is free to modify the item and return it, thus forming a new array of modified items:
use Illuminate\Support\Arr;
$array = [
[0, 1],
[2, 3],
[4, 5],
[6, 7],
[8, 9],
];
$mapped = Arr::mapSpread($array, function (int $even, int $odd) {
return $even + $odd;
});
/*
[1, 5, 9, 13, 17]
*/
The Arr::mapWithKeys
method iterates through the array and passes each value to the given callback. The callback should return an associative array containing a single key / value pair:
use Illuminate\Support\Arr;
$array = [
[
'name' => 'John',
'department' => 'Sales',
'email' => '[email protected]',
],
[
'name' => 'Jane',
'department' => 'Marketing',
'email' => '[email protected]',
]
];
$mapped = Arr::mapWithKeys($array, function (array $item, int $key) {
return [$item['email'] => $item['name']];
});
/*
[
'[email protected]' => 'John',
'[email protected]' => 'Jane',
]
*/
The Arr::only
method returns only the specified key / value pairs from the given array:
use Illuminate\Support\Arr;
$array = ['name' => 'Desk', 'price' => 100, 'orders' => 10];
$slice = Arr::only($array, ['name', 'price']);
// ['name' => 'Desk', 'price' => 100]
The Arr::pluck
method retrieves all of the values for a given key from an array:
use Illuminate\Support\Arr;
$array = [
['developer' => ['id' => 1, 'name' => 'Taylor']],
['developer' => ['id' => 2, 'name' => 'Abigail']],
];
$names = Arr::pluck($array, 'developer.name');
// ['Taylor', 'Abigail']
You may also specify how you wish the resulting list to be keyed:
use Illuminate\Support\Arr;
$names = Arr::pluck($array, 'developer.name', 'developer.id');
// [1 => 'Taylor', 2 => 'Abigail']
The Arr::prepend
method will push an item onto the beginning of an array:
use Illuminate\Support\Arr;
$array = ['one', 'two', 'three', 'four'];
$array = Arr::prepend($array, 'zero');
// ['zero', 'one', 'two', 'three', 'four']
If needed, you may specify the key that should be used for the value:
use Illuminate\Support\Arr;
$array = ['price' => 100];
$array = Arr::prepend($array, 'Desk', 'name');
// ['name' => 'Desk', 'price' => 100]
The Arr::prependKeysWith
prepends all key names of an associative array with the given prefix:
use Illuminate\Support\Arr;
$array = [
'name' => 'Desk',
'price' => 100,
];
$keyed = Arr::prependKeysWith($array, 'product.');
/*
[
'product.name' => 'Desk',
'product.price' => 100,
]
*/
The Arr::pull
method returns and removes a key / value pair from an array:
use Illuminate\Support\Arr;
$array = ['name' => 'Desk', 'price' => 100];
$name = Arr::pull($array, 'name');
// $name: Desk
// $array: ['price' => 100]
A default value may be passed as the third argument to the method. This value will be returned if the key doesn't exist:
use Illuminate\Support\Arr;
$value = Arr::pull($array, $key, $default);
The Arr::query
method converts the array into a query string:
use Illuminate\Support\Arr;
$array = [
'name' => 'Taylor',
'order' => [
'column' => 'created_at',
'direction' => 'desc'
]
];
Arr::query($array);
// name=Taylor&order[column]=created_at&order[direction]=desc
The Arr::random
method returns a random value from an array:
use Illuminate\Support\Arr;
$array = [1, 2, 3, 4, 5];
$random = Arr::random($array);
// 4 - (retrieved randomly)
You may also specify the number of items to return as an optional second argument. Note that providing this argument will return an array even if only one item is desired:
use Illuminate\Support\Arr;
$items = Arr::random($array, 2);
// [2, 5] - (retrieved randomly)
The Arr::set
method sets a value within a deeply nested array using "dot" notation:
use Illuminate\Support\Arr;
$array = ['products' => ['desk' => ['price' => 100]]];
Arr::set($array, 'products.desk.price', 200);
// ['products' => ['desk' => ['price' => 200]]]
The Arr::shuffle
method randomly shuffles the items in the array:
use Illuminate\Support\Arr;
$array = Arr::shuffle([1, 2, 3, 4, 5]);
// [3, 2, 5, 1, 4] - (generated randomly)
The Arr::sort
method sorts an array by its values:
use Illuminate\Support\Arr;
$array = ['Desk', 'Table', 'Chair'];
$sorted = Arr::sort($array);
// ['Chair', 'Desk', 'Table']
You may also sort the array by the results of a given closure:
use Illuminate\Support\Arr;
$array = [
['name' => 'Desk'],
['name' => 'Table'],
['name' => 'Chair'],
];
$sorted = array_values(Arr::sort($array, function (array $value) {
return $value['name'];
}));
/*
[
['name' => 'Chair'],
['name' => 'Desk'],
['name' => 'Table'],
]
*/
The Arr::sortDesc
method sorts an array in descending order by its values:
use Illuminate\Support\Arr;
$array = ['Desk', 'Table', 'Chair'];
$sorted = Arr::sortDesc($array);
// ['Table', 'Desk', 'Chair']
You may also sort the array by the results of a given closure:
use Illuminate\Support\Arr;
$array = [
['name' => 'Desk'],
['name' => 'Table'],
['name' => 'Chair'],
];
$sorted = array_values(Arr::sortDesc($array, function (array $value) {
return $value['name'];
}));
/*
[
['name' => 'Table'],
['name' => 'Desk'],
['name' => 'Chair'],
]
*/
The Arr::sortRecursive
method recursively sorts an array using the sort
function for numerically indexed sub-arrays and the ksort
function for associative sub-arrays:
use Illuminate\Support\Arr;
$array = [
['Roman', 'Taylor', 'Li'],
['PHP', 'Ruby', 'JavaScript'],
['one' => 1, 'two' => 2, 'three' => 3],
];
$sorted = Arr::sortRecursive($array);
/*
[
['JavaScript', 'PHP', 'Ruby'],
['one' => 1, 'three' => 3, 'two' => 2],
['Li', 'Roman', 'Taylor'],
]
*/
If you would like the results sorted in descending order, you may use the Arr::sortRecursiveDesc
method.
$sorted = Arr::sortRecursiveDesc($array);
The Arr::take
method returns a new array with the specified number of items:
use Illuminate\Support\Arr;
$array = [0, 1, 2, 3, 4, 5];
$chunk = Arr::take($array, 3);
// [0, 1, 2]
You may also pass a negative integer to take the specified number of items from the end of the array:
$array = [0, 1, 2, 3, 4, 5];
$chunk = Arr::take($array, -2);
// [4, 5]
The Arr::toCssClasses
method conditionally compiles a CSS class string. The method accepts an array of classes where the array key contains the class or classes you wish to add, while the value is a boolean expression. If the array element has a numeric key, it will always be included in the rendered class list:
use Illuminate\Support\Arr;
$isActive = false;
$hasError = true;
$array = ['p-4', 'font-bold' => $isActive, 'bg-red' => $hasError];
$classes = Arr::toCssClasses($array);
/*
'p-4 bg-red'
*/
The Arr::toCssStyles
conditionally compiles a CSS style string. The method accepts an array of classes where the array key contains the class or classes you wish to add, while the value is a boolean expression. If the array element has a numeric key, it will always be included in the rendered class list:
use Illuminate\Support\Arr;
$hasColor = true;
$array = ['background-color: blue', 'color: blue' => $hasColor];
$classes = Arr::toCssStyles($array);
/*
'background-color: blue; color: blue;'
*/
This method powers Laravel's functionality allowing merging classes with a Blade component's attribute bag as well as the @class
Blade directive.
The Arr::undot
method expands a single-dimensional array that uses "dot" notation into a multi-dimensional array:
use Illuminate\Support\Arr;
$array = [
'user.name' => 'Kevin Malone',
'user.occupation' => 'Accountant',
];
$array = Arr::undot($array);
// ['user' => ['name' => 'Kevin Malone', 'occupation' => 'Accountant']]
The Arr::where
method filters an array using the given closure:
use Illuminate\Support\Arr;
$array = [100, '200', 300, '400', 500];
$filtered = Arr::where($array, function (string|int $value, int $key) {
return is_string($value);
});
// [1 => '200', 3 => '400']
The Arr::whereNotNull
method removes all null
values from the given array:
use Illuminate\Support\Arr;
$array = [0, null];
$filtered = Arr::whereNotNull($array);
// [0 => 0]
The Arr::wrap
method wraps the given value in an array. If the given value is already an array it will be returned without modification:
use Illuminate\Support\Arr;
$string = 'Laravel';
$array = Arr::wrap($string);
// ['Laravel']
If the given value is null
, an empty array will be returned:
use Illuminate\Support\Arr;
$array = Arr::wrap(null);
// []
The data_fill
function sets a missing value within a nested array or object using "dot" notation:
$data = ['products' => ['desk' => ['price' => 100]]];
data_fill($data, 'products.desk.price', 200);
// ['products' => ['desk' => ['price' => 100]]]
data_fill($data, 'products.desk.discount', 10);
// ['products' => ['desk' => ['price' => 100, 'discount' => 10]]]
This function also accepts asterisks as wildcards and will fill the target accordingly:
$data = [
'products' => [
['name' => 'Desk 1', 'price' => 100],
['name' => 'Desk 2'],
],
];
data_fill($data, 'products.*.price', 200);
/*
[
'products' => [
['name' => 'Desk 1', 'price' => 100],
['name' => 'Desk 2', 'price' => 200],
],
]
*/
The data_get
function retrieves a value from a nested array or object using "dot" notation:
$data = ['products' => ['desk' => ['price' => 100]]];
$price = data_get($data, 'products.desk.price');
// 100
The data_get
function also accepts a default value, which will be returned if the specified key is not found:
$discount = data_get($data, 'products.desk.discount', 0);
// 0
The function also accepts wildcards using asterisks, which may target any key of the array or object:
$data = [
'product-one' => ['name' => 'Desk 1', 'price' => 100],
'product-two' => ['name' => 'Desk 2', 'price' => 150],
];
data_get($data, '*.name');
// ['Desk 1', 'Desk 2'];
The {first}
and {last}
placeholders may be used to retrieve the first or last items in an array:
$flight = [
'segments' => [
['from' => 'LHR', 'departure' => '9:00', 'to' => 'IST', 'arrival' => '15:00'],
['from' => 'IST', 'departure' => '16:00', 'to' => 'PKX', 'arrival' => '20:00'],
],
];
data_get($flight, 'segments.{first}.arrival');
// 15:00
The data_set
function sets a value within a nested array or object using "dot" notation:
$data = ['products' => ['desk' => ['price' => 100]]];
data_set($data, 'products.desk.price', 200);
// ['products' => ['desk' => ['price' => 200]]]
This function also accepts wildcards using asterisks and will set values on the target accordingly:
$data = [
'products' => [
['name' => 'Desk 1', 'price' => 100],
['name' => 'Desk 2', 'price' => 150],
],
];
data_set($data, 'products.*.price', 200);
/*
[
'products' => [
['name' => 'Desk 1', 'price' => 200],
['name' => 'Desk 2', 'price' => 200],
],
]
*/
By default, any existing values are overwritten. If you wish to only set a value if it doesn't exist, you may pass false
as the fourth argument to the function:
$data = ['products' => ['desk' => ['price' => 100]]];
data_set($data, 'products.desk.price', 200, overwrite: false);
// ['products' => ['desk' => ['price' => 100]]]
The data_forget
function removes a value within a nested array or object using "dot" notation:
$data = ['products' => ['desk' => ['price' => 100]]];
data_forget($data, 'products.desk.price');
// ['products' => ['desk' => []]]
This function also accepts wildcards using asterisks and will remove values on the target accordingly:
$data = [
'products' => [
['name' => 'Desk 1', 'price' => 100],
['name' => 'Desk 2', 'price' => 150],
],
];
data_forget($data, 'products.*.price');
/*
[
'products' => [
['name' => 'Desk 1'],
['name' => 'Desk 2'],
],
]
*/
The head
function returns the first element in the given array:
$array = [100, 200, 300];
$first = head($array);
// 100
The last
function returns the last element in the given array:
$array = [100, 200, 300];
$last = last($array);
// 300
The Number::abbreviate
method returns the human-readable format of the provided numerical value, with an abbreviation for the units:
use Illuminate\Support\Number;
$number = Number::abbreviate(1000);
// 1K
$number = Number::abbreviate(489939);
// 490K
$number = Number::abbreviate(1230000, precision: 2);
// 1.23M
The Number::clamp
method ensures a given number stays within a specified range. If the number is lower than the minimum, the minimum value is returned. If the number is higher than the maximum, the maximum value is returned:
use Illuminate\Support\Number;
$number = Number::clamp(105, min: 10, max: 100);
// 100
$number = Number::clamp(5, min: 10, max: 100);
// 10
$number = Number::clamp(10, min: 10, max: 100);
// 10
$number = Number::clamp(20, min: 10, max: 100);
// 20
The Number::currency
method returns the currency representation of the given value as a string:
use Illuminate\Support\Number;
$currency = Number::currency(1000);
// $1,000.00
$currency = Number::currency(1000, in: 'EUR');
// €1,000.00
$currency = Number::currency(1000, in: 'EUR', locale: 'de');
// 1.000,00 €
The Number::defaultCurrency
method returns the default currency being used by the Number
class:
use Illuminate\Support\Number;
$currency = Number::defaultCurrency();
// USD
The Number::defaultLocale
method returns the default locale being used by the Number
class:
use Illuminate\Support\Number;
$locale = Number::defaultLocale();
// en
The Number::fileSize
method returns the file size representation of the given byte value as a string:
use Illuminate\Support\Number;
$size = Number::fileSize(1024);
// 1 KB
$size = Number::fileSize(1024 * 1024);
// 1 MB
$size = Number::fileSize(1024, precision: 2);
// 1.00 KB
The Number::forHumans
method returns the human-readable format of the provided numerical value:
use Illuminate\Support\Number;
$number = Number::forHumans(1000);
// 1 thousand
$number = Number::forHumans(489939);
// 490 thousand
$number = Number::forHumans(1230000, precision: 2);
// 1.23 million
The Number::format
method formats the given number into a locale specific string:
use Illuminate\Support\Number;
$number = Number::format(100000);
// 100,000
$number = Number::format(100000, precision: 2);
// 100,000.00
$number = Number::format(100000.123, maxPrecision: 2);
// 100,000.12
$number = Number::format(100000, locale: 'de');
// 100.000
The Number::ordinal
method returns a number's ordinal representation:
use Illuminate\Support\Number;
$number = Number::ordinal(1);
// 1st
$number = Number::ordinal(2);
// 2nd
$number = Number::ordinal(21);
// 21st
The Number::pairs
method generates an array of number pairs (sub-ranges) based on a specified range and step value. This method can be useful for dividing a larger range of numbers into smaller, manageable sub-ranges for things like pagination or batching tasks. The pairs
method returns an array of arrays, where each inner array represents a pair (sub-range) of numbers:
use Illuminate\Support\Number;
$result = Number::pairs(25, 10);
// [[1, 10], [11, 20], [21, 25]]
$result = Number::pairs(25, 10, offset: 0);
// [[0, 10], [10, 20], [20, 25]]
The Number::percentage
method returns the percentage representation of the given value as a string:
use Illuminate\Support\Number;
$percentage = Number::percentage(10);
// 10%
$percentage = Number::percentage(10, precision: 2);
// 10.00%
$percentage = Number::percentage(10.123, maxPrecision: 2);
// 10.12%
$percentage = Number::percentage(10, precision: 2, locale: 'de');
// 10,00%
The Number::spell
method transforms the given number into a string of words:
use Illuminate\Support\Number;
$number = Number::spell(102);
// one hundred and two
$number = Number::spell(88, locale: 'fr');
// quatre-vingt-huit
The after
argument allows you to specify a value after which all numbers should be spelled out:
$number = Number::spell(10, after: 10);
// 10
$number = Number::spell(11, after: 10);
// eleven
The until
argument allows you to specify a value before which all numbers should be spelled out:
$number = Number::spell(5, until: 10);
// five
$number = Number::spell(10, until: 10);
// 10
The Number::trim
method removes any trailing zero digits after the decimal point of the given number:
use Illuminate\Support\Number;
$number = Number::trim(12.0);
// 12
$number = Number::trim(12.30);
// 12.3
The Number::useLocale
method sets the default number locale globally, which affects how numbers and currency are formatted by subsequent invocations to the Number
class's methods:
use Illuminate\Support\Number;
/**
* Bootstrap any application services.
*/
public function boot(): void
{
Number::useLocale('de');
}
The Number::withLocale
method executes the given closure using the specified locale and then restores the original locale after the callback has executed:
use Illuminate\Support\Number;
$number = Number::withLocale('de', function () {
return Number::format(1500);
});
The Number::useCurrency
method sets the default number currency globally, which affects how the currency is formatted by subsequent invocations to the Number
class's methods:
use Illuminate\Support\Number;
/**
* Bootstrap any application services.
*/
public function boot(): void
{
Number::useCurrency('GBP');
}
The Number::withCurrency
method executes the given closure using the specified currency and then restores the original currency after the callback has executed:
use Illuminate\Support\Number;
$number = Number::withCurrency('GBP', function () {
// ...
});
The app_path
function returns the fully qualified path to your application's app
directory. You may also use the app_path
function to generate a fully qualified path to a file relative to the application directory:
$path = app_path();
$path = app_path('Http/Controllers/Controller.php');
The base_path
function returns the fully qualified path to your application's root directory. You may also use the base_path
function to generate a fully qualified path to a given file relative to the project root directory:
$path = base_path();
$path = base_path('vendor/bin');
The config_path
function returns the fully qualified path to your application's config
directory. You may also use the config_path
function to generate a fully qualified path to a given file within the application's configuration directory:
$path = config_path();
$path = config_path('app.php');
The database_path
function returns the fully qualified path to your application's database
directory. You may also use the database_path
function to generate a fully qualified path to a given file within the database directory:
$path = database_path();
$path = database_path('factories/UserFactory.php');
The lang_path
function returns the fully qualified path to your application's lang
directory. You may also use the lang_path
function to generate a fully qualified path to a given file within the directory:
$path = lang_path();
$path = lang_path('en/messages.php');
Note
By default, the Laravel application skeleton does not include the lang
directory. If you would like to customize Laravel's language files, you may publish them via the lang:publish
Artisan command.
The mix
function returns the path to a versioned Mix file:
$path = mix('css/app.css');
The public_path
function returns the fully qualified path to your application's public
directory. You may also use the public_path
function to generate a fully qualified path to a given file within the public directory:
$path = public_path();
$path = public_path('css/app.css');
The resource_path
function returns the fully qualified path to your application's resources
directory. You may also use the resource_path
function to generate a fully qualified path to a given file within the resources directory:
$path = resource_path();
$path = resource_path('sass/app.scss');
The storage_path
function returns the fully qualified path to your application's storage
directory. You may also use the storage_path
function to generate a fully qualified path to a given file within the storage directory:
$path = storage_path();
$path = storage_path('app/file.txt');
The action
function generates a URL for the given controller action:
use App\Http\Controllers\HomeController;
$url = action([HomeController::class, 'index']);
If the method accepts route parameters, you may pass them as the second argument to the method:
$url = action([UserController::class, 'profile'], ['id' => 1]);
The asset
function generates a URL for an asset using the current scheme of the request (HTTP or HTTPS):
$url = asset('img/photo.jpg');
You can configure the asset URL host by setting the ASSET_URL
variable in your .env
file. This can be useful if you host your assets on an external service like Amazon S3 or another CDN:
// ASSET_URL=http://example.com/assets
$url = asset('img/photo.jpg'); // http://example.com/assets/img/photo.jpg
The route
function generates a URL for a given named route:
$url = route('route.name');
If the route accepts parameters, you may pass them as the second argument to the function:
$url = route('route.name', ['id' => 1]);
By default, the route
function generates an absolute URL. If you wish to generate a relative URL, you may pass false
as the third argument to the function:
$url = route('route.name', ['id' => 1], false);
The secure_asset
function generates a URL for an asset using HTTPS:
$url = secure_asset('img/photo.jpg');
The secure_url
function generates a fully qualified HTTPS URL to the given path. Additional URL segments may be passed in the function's second argument:
$url = secure_url('user/profile');
$url = secure_url('user/profile', [1]);
The to_route
function generates a redirect HTTP response for a given named route:
return to_route('users.show', ['user' => 1]);
If necessary, you may pass the HTTP status code that should be assigned to the redirect and any additional response headers as the third and fourth arguments to the to_route
method:
return to_route('users.show', ['user' => 1], 302, ['X-Framework' => 'Laravel']);
The url
function generates a fully qualified URL to the given path:
$url = url('user/profile');
$url = url('user/profile', [1]);
If no path is provided, an Illuminate\Routing\UrlGenerator
instance is returned:
$current = url()->current();
$full = url()->full();
$previous = url()->previous();
The abort
function throws an HTTP exception which will be rendered by the exception handler:
abort(403);
You may also provide the exception's message and custom HTTP response headers that should be sent to the browser:
abort(403, 'Unauthorized.', $headers);
The abort_if
function throws an HTTP exception if a given boolean expression evaluates to true
:
abort_if(! Auth::user()->isAdmin(), 403);
Like the abort
method, you may also provide the exception's response text as the third argument and an array of custom response headers as the fourth argument to the function.
The abort_unless
function throws an HTTP exception if a given boolean expression evaluates to false
:
abort_unless(Auth::user()->isAdmin(), 403);
Like the abort
method, you may also provide the exception's response text as the third argument and an array of custom response headers as the fourth argument to the function.
The app
function returns the service container instance:
$container = app();
You may pass a class or interface name to resolve it from the container:
$api = app('HelpSpot\API');
The auth
function returns an authenticator instance. You may use it as an alternative to the Auth
facade:
$user = auth()->user();
If needed, you may specify which guard instance you would like to access:
$user = auth('admin')->user();
The back
function generates a redirect HTTP response to the user's previous location:
return back($status = 302, $headers = [], $fallback = '/');
return back();
The bcrypt
function hashes the given value using Bcrypt. You may use this function as an alternative to the Hash
facade:
$password = bcrypt('my-secret-password');
The blank
function determines whether the given value is "blank":
blank('');
blank(' ');
blank(null);
blank(collect());
// true
blank(0);
blank(true);
blank(false);
// false
For the inverse of blank
, see the filled
method.
The broadcast
function broadcasts the given event to its listeners:
broadcast(new UserRegistered($user));
broadcast(new UserRegistered($user))->toOthers();
The cache
function may be used to get values from the cache. If the given key does not exist in the cache, an optional default value will be returned:
$value = cache('key');
$value = cache('key', 'default');
You may add items to the cache by passing an array of key / value pairs to the function. You should also pass the number of seconds or duration the cached value should be considered valid:
cache(['key' => 'value'], 300);
cache(['key' => 'value'], now()->addSeconds(10));
The class_uses_recursive
function returns all traits used by a class, including traits used by all of its parent classes:
$traits = class_uses_recursive(App\Models\User::class);
The collect
function creates a collection instance from the given value:
$collection = collect(['taylor', 'abigail']);
The config
function gets the value of a configuration variable. The configuration values may be accessed using "dot" syntax, which includes the name of the file and the option you wish to access. A default value may be specified and is returned if the configuration option does not exist:
$value = config('app.timezone');
$value = config('app.timezone', $default);
You may set configuration variables at runtime by passing an array of key / value pairs. However, note that this function only affects the configuration value for the current request and does not update your actual configuration values:
config(['app.debug' => true]);
The context
function gets the value from the current context. A default value may be specified and is returned if the context key does not exist:
$value = context('trace_id');
$value = context('trace_id', $default);
You may set context values by passing an array of key / value pairs:
use Illuminate\Support\Str;
context(['trace_id' => Str::uuid()->toString()]);
The cookie
function creates a new cookie instance:
$cookie = cookie('name', 'value', $minutes);
The csrf_field
function generates an HTML hidden
input field containing the value of the CSRF token. For example, using Blade syntax:
{{ csrf_field() }}
The csrf_token
function retrieves the value of the current CSRF token:
$token = csrf_token();
The decrypt
function decrypts the given value. You may use this function as an alternative to the Crypt
facade:
$password = decrypt($value);
The dd
function dumps the given variables and ends the execution of the script:
dd($value);
dd($value1, $value2, $value3, ...);
If you do not want to halt the execution of your script, use the dump
function instead.
The dispatch
function pushes the given job onto the Laravel job queue:
dispatch(new App\Jobs\SendEmails);
The dispatch_sync
function pushes the given job to the sync queue so that it is processed immediately:
dispatch_sync(new App\Jobs\SendEmails);
The dump
function dumps the given variables:
dump($value);
dump($value1, $value2, $value3, ...);
If you want to stop executing the script after dumping the variables, use the dd
function instead.
The encrypt
function encrypts the given value. You may use this function as an alternative to the Crypt
facade:
$secret = encrypt('my-secret-value');
The env
function retrieves the value of an environment variable or returns a default value:
$env = env('APP_ENV');
$env = env('APP_ENV', 'production');
Warning
If you execute the config:cache
command during your deployment process, you should be sure that you are only calling the env
function from within your configuration files. Once the configuration has been cached, the .env
file will not be loaded and all calls to the env
function will return null
.
The event
function dispatches the given event to its listeners:
event(new UserRegistered($user));
The fake
function resolves a Faker singleton from the container, which can be useful when creating fake data in model factories, database seeding, tests, and prototyping views:
@for($i = 0; $i < 10; $i++)
<dl>
<dt>Name</dt>
<dd>{{ fake()->name() }}</dd>
<dt>Email</dt>
<dd>{{ fake()->unique()->safeEmail() }}</dd>
</dl>
@endfor
By default, the fake
function will utilize the app.faker_locale
configuration option in your config/app.php
configuration. Typically, this configuration option is set via the APP_FAKER_LOCALE
environment variable. You may also specify the locale by passing it to the fake
function. Each locale will resolve an individual singleton:
fake('nl_NL')->name()
The filled
function determines whether the given value is not "blank":
filled(0);
filled(true);
filled(false);
// true
filled('');
filled(' ');
filled(null);
filled(collect());
// false
For the inverse of filled
, see the blank
method.
The info
function will write information to your application's log:
info('Some helpful information!');
An array of contextual data may also be passed to the function:
info('User login attempt failed.', ['id' => $user->id]);
The literal
function creates a new stdClass instance with the given named arguments as properties:
$obj = literal(
name: 'Joe',
languages: ['PHP', 'Ruby'],
);
$obj->name; // 'Joe'
$obj->languages; // ['PHP', 'Ruby']
The logger
function can be used to write a debug
level message to the log:
logger('Debug message');
An array of contextual data may also be passed to the function:
logger('User has logged in.', ['id' => $user->id]);
A logger instance will be returned if no value is passed to the function:
logger()->error('You are not allowed here.');
The method_field
function generates an HTML hidden
input field containing the spoofed value of the form's HTTP verb. For example, using Blade syntax:
<form method="POST">
{{ method_field('DELETE') }}
</form>
The now
function creates a new Illuminate\Support\Carbon
instance for the current time:
$now = now();
The old
function retrieves an old input value flashed into the session:
$value = old('value');
$value = old('value', 'default');
Since the "default value" provided as the second argument to the old
function is often an attribute of an Eloquent model, Laravel allows you to simply pass the entire Eloquent model as the second argument to the old
function. When doing so, Laravel will assume the first argument provided to the old
function is the name of the Eloquent attribute that should be considered the "default value":
{{ old('name', $user->name) }}
// Is equivalent to...
{{ old('name', $user) }}
The once
function executes the given callback and caches the result in memory for the duration of the request. Any subsequent calls to the once
function with the same callback will return the previously cached result:
function random(): int
{
return once(function () {
return random_int(1, 1000);
});
}
random(); // 123
random(); // 123 (cached result)
random(); // 123 (cached result)
When the once
function is executed from within an object instance, the cached result will be unique to that object instance:
<?php
class NumberService
{
public function all(): array
{
return once(fn () => [1, 2, 3]);
}
}
$service = new NumberService;
$service->all();
$service->all(); // (cached result)
$secondService = new NumberService;
$secondService->all();
$secondService->all(); // (cached result)
The optional
function accepts any argument and allows you to access properties or call methods on that object. If the given object is null
, properties and methods will return null
instead of causing an error:
return optional($user->address)->street;
{!! old('name', optional($user)->name) !!}
The optional
function also accepts a closure as its second argument. The closure will be invoked if the value provided as the first argument is not null:
return optional(User::find($id), function (User $user) {
return $user->name;
});
The policy
method retrieves a policy instance for a given class:
$policy = policy(App\Models\User::class);
The redirect
function returns a redirect HTTP response, or returns the redirector instance if called with no arguments:
return redirect($to = null, $status = 302, $headers = [], $https = null);
return redirect('/home');
return redirect()->route('route.name');
The report
function will report an exception using your exception handler:
report($e);
The report
function also accepts a string as an argument. When a string is given to the function, the function will create an exception with the given string as its message:
report('Something went wrong.');
The report_if
function will report an exception using your exception handler if the given condition is true
:
report_if($shouldReport, $e);
report_if($shouldReport, 'Something went wrong.');
The report_unless
function will report an exception using your exception handler if the given condition is false
:
report_unless($reportingDisabled, $e);
report_unless($reportingDisabled, 'Something went wrong.');
The request
function returns the current request instance or obtains an input field's value from the current request:
$request = request();
$value = request('key', $default);
The rescue
function executes the given closure and catches any exceptions that occur during its execution. All exceptions that are caught will be sent to your exception handler; however, the request will continue processing:
return rescue(function () {
return $this->method();
});
You may also pass a second argument to the rescue
function. This argument will be the "default" value that should be returned if an exception occurs while executing the closure:
return rescue(function () {
return $this->method();
}, false);
return rescue(function () {
return $this->method();
}, function () {
return $this->failure();
});
A report
argument may be provided to the rescue
function to determine if the exception should be reported via the report
function:
return rescue(function () {
return $this->method();
}, report: function (Throwable $throwable) {
return $throwable instanceof InvalidArgumentException;
});
The resolve
function resolves a given class or interface name to an instance using the service container:
$api = resolve('HelpSpot\API');
The response
function creates a response instance or obtains an instance of the response factory:
return response('Hello World', 200, $headers);
return response()->json(['foo' => 'bar'], 200, $headers);
The retry
function attempts to execute the given callback until the given maximum attempt threshold is met. If the callback does not throw an exception, its return value will be returned. If the callback throws an exception, it will automatically be retried. If the maximum attempt count is exceeded, the exception will be thrown:
return retry(5, function () {
// Attempt 5 times while resting 100ms between attempts...
}, 100);
If you would like to manually calculate the number of milliseconds to sleep between attempts, you may pass a closure as the third argument to the retry
function:
use Exception;
return retry(5, function () {
// ...
}, function (int $attempt, Exception $exception) {
return $attempt * 100;
});
For convenience, you may provide an array as the first argument to the retry
function. This array will be used to determine how many milliseconds to sleep between subsequent attempts:
return retry([100, 200], function () {
// Sleep for 100ms on first retry, 200ms on second retry...
});
To only retry under specific conditions, you may pass a closure as the fourth argument to the retry
function:
use Exception;
return retry(5, function () {
// ...
}, 100, function (Exception $exception) {
return $exception instanceof RetryException;
});
The session
function may be used to get or set session values:
$value = session('key');
You may set values by passing an array of key / value pairs to the function:
session(['chairs' => 7, 'instruments' => 3]);
The session store will be returned if no value is passed to the function:
$value = session()->get('key');
session()->put('key', $value);
The tap
function accepts two arguments: an arbitrary $value
and a closure. The $value
will be passed to the closure and then be returned by the tap
function. The return value of the closure is irrelevant:
$user = tap(User::first(), function (User $user) {
$user->name = 'taylor';
$user->save();
});
If no closure is passed to the tap
function, you may call any method on the given $value
. The return value of the method you call will always be $value
, regardless of what the method actually returns in its definition. For example, the Eloquent update
method typically returns an integer. However, we can force the method to return the model itself by chaining the update
method call through the tap
function:
$user = tap($user)->update([
'name' => $name,
'email' => $email,
]);
To add a tap
method to a class, you may add the Illuminate\Support\Traits\Tappable
trait to the class. The tap
method of this trait accepts a Closure as its only argument. The object instance itself will be passed to the Closure and then be returned by the tap
method:
return $user->tap(function (User $user) {
// ...
});
The throw_if
function throws the given exception if a given boolean expression evaluates to true
:
throw_if(! Auth::user()->isAdmin(), AuthorizationException::class);
throw_if(
! Auth::user()->isAdmin(),
AuthorizationException::class,
'You are not allowed to access this page.'
);
The throw_unless
function throws the given exception if a given boolean expression evaluates to false
:
throw_unless(Auth::user()->isAdmin(), AuthorizationException::class);
throw_unless(
Auth::user()->isAdmin(),
AuthorizationException::class,
'You are not allowed to access this page.'
);
The today
function creates a new Illuminate\Support\Carbon
instance for the current date:
$today = today();
The trait_uses_recursive
function returns all traits used by a trait:
$traits = trait_uses_recursive(\Illuminate\Notifications\Notifiable::class);
The transform
function executes a closure on a given value if the value is not blank and then returns the return value of the closure:
$callback = function (int $value) {
return $value * 2;
};
$result = transform(5, $callback);
// 10
A default value or closure may be passed as the third argument to the function. This value will be returned if the given value is blank:
$result = transform(null, $callback, 'The value is blank');
// The value is blank
The validator
function creates a new validator instance with the given arguments. You may use it as an alternative to the Validator
facade:
$validator = validator($data, $rules, $messages);
The value
function returns the value it is given. However, if you pass a closure to the function, the closure will be executed and its returned value will be returned:
$result = value(true);
// true
$result = value(function () {
return false;
});
// false
Additional arguments may be passed to the value
function. If the first argument is a closure then the additional parameters will be passed to the closure as arguments, otherwise they will be ignored:
$result = value(function (string $name) {
return $name;
}, 'Taylor');
// 'Taylor'
The view
function retrieves a view instance:
return view('auth.login');
The with
function returns the value it is given. If a closure is passed as the second argument to the function, the closure will be executed and its returned value will be returned:
$callback = function (mixed $value) {
return is_numeric($value) ? $value * 2 : 0;
};
$result = with(5, $callback);
// 10
$result = with(null, $callback);
// 0
$result = with(5, null);
// 5
The when
function returns the value it is given if a given condition evaluates to true
. Otherwise, null
is returned. If a closure is passed as the second argument to the function, the closure will be executed and its returned value will be returned:
$value = when(true, 'Hello World');
$value = when(true, fn () => 'Hello World');
The when
function is primarily useful for conditionally rendering HTML attributes:
<div {!! when($condition, 'wire:poll="calculate"') !!}>
...
</div>
Sometimes you may wish to quickly test the performance of certain parts of your application. On those occasions, you may utilize the Benchmark
support class to measure the number of milliseconds it takes for the given callbacks to complete:
<?php
use App\Models\User;
use Illuminate\Support\Benchmark;
Benchmark::dd(fn () => User::find(1)); // 0.1 ms
Benchmark::dd([
'Scenario 1' => fn () => User::count(), // 0.5 ms
'Scenario 2' => fn () => User::all()->count(), // 20.0 ms
]);
By default, the given callbacks will be executed once (one iteration), and their duration will be displayed in the browser / console.
To invoke a callback more than once, you may specify the number of iterations that the callback should be invoked as the second argument to the method. When executing a callback more than once, the Benchmark
class will return the average amount of milliseconds it took to execute the callback across all iterations:
Benchmark::dd(fn () => User::count(), iterations: 10); // 0.5 ms
Sometimes, you may want to benchmark the execution of a callback while still obtaining the value returned by the callback. The value
method will return a tuple containing the value returned by the callback and the amount of milliseconds it took to execute the callback:
[$count, $duration] = Benchmark::value(fn () => User::count());
Laravel includes Carbon, a powerful date and time manipulation library. To create a new Carbon
instance, you may invoke the now
function. This function is globally available within your Laravel application:
$now = now();
Or, you may create a new Carbon
instance using the Illuminate\Support\Carbon
class:
use Illuminate\Support\Carbon;
$now = Carbon::now();
For a thorough discussion of Carbon and its features, please consult the official Carbon documentation.
Warning
Deferred functions are currently in beta while we gather community feedback.
While Laravel's queued jobs allow you to queue tasks for background processing, sometimes you may have simple tasks you would like to defer without configuring or maintaining a long-running queue worker.
Deferred functions allow you to defer the execution of a closure until after the HTTP response has been sent to the user, keeping your application feeling fast and responsive. To defer the execution of a closure, simply pass the closure to the Illuminate\Support\defer
function:
use App\Services\Metrics;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Route;
use function Illuminate\Support\defer;
Route::post('/orders', function (Request $request) {
// Create order...
defer(fn () => Metrics::reportOrder($order));
return $order;
});
By default, deferred functions will only be executed if the HTTP response, Artisan command, or queued job from which Illuminate\Support\defer
is invoked completes successfully. This means that deferred functions will not be executed if a request results in a 4xx
or 5xx
HTTP response. If you would like a deferred function to always execute, you may chain the always
method onto your deferred function:
defer(fn () => Metrics::reportOrder($order))->always();
If you need to cancel a deferred function before it is executed, you can use the forget
method to cancel the function by its name. To name a deferred function, provide a second argument to the Illuminate\Support\defer
function:
defer(fn () => Metrics::report(), 'reportMetrics');
defer()->forget('reportMetrics');
If you upgraded to Laravel 11.x from a Laravel 10.x application and your application's skeleton still contains an app/Http/Kernel.php
file, you should add the InvokeDeferredCallbacks
middleware to the beginning of the kernel's $middleware
property:
protected $middleware = [
\Illuminate\Foundation\Http\Middleware\InvokeDeferredCallbacks::class, // [tl! add]
\App\Http\Middleware\TrustProxies::class,
// ...
];
When writing tests, it may be useful to disable deferred functions. You may call withoutDefer
in your test to instruct Laravel to invoke all deferred functions immediately:
test('without defer', function () {
$this->withoutDefer();
// ...
});
use Tests\TestCase;
class ExampleTest extends TestCase
{
public function test_without_defer(): void
{
$this->withoutDefer();
// ...
}
}
If you would like to disable deferred functions for all tests within a test case, you may call the withoutDefer
method from the setUp
method on your base TestCase
class:
<?php
namespace Tests;
use Illuminate\Foundation\Testing\TestCase as BaseTestCase;
abstract class TestCase extends BaseTestCase
{
protected function setUp(): void// [tl! add:start]
{
parent::setUp();
$this->withoutDefer();
}// [tl! add:end]
}
Laravel's lottery class may be used to execute callbacks based on a set of given odds. This can be particularly useful when you only want to execute code for a percentage of your incoming requests:
use Illuminate\Support\Lottery;
Lottery::odds(1, 20)
->winner(fn () => $user->won())
->loser(fn () => $user->lost())
->choose();
You may combine Laravel's lottery class with other Laravel features. For example, you may wish to only report a small percentage of slow queries to your exception handler. And, since the lottery class is callable, we may pass an instance of the class into any method that accepts callables:
use Carbon\CarbonInterval;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Lottery;
DB::whenQueryingForLongerThan(
CarbonInterval::seconds(2),
Lottery::odds(1, 100)->winner(fn () => report('Querying > 2 seconds.')),
);
Laravel provides some simple methods to allow you to easily test your application's lottery invocations:
// Lottery will always win...
Lottery::alwaysWin();
// Lottery will always lose...
Lottery::alwaysLose();
// Lottery will win then lose, and finally return to normal behavior...
Lottery::fix([true, false]);
// Lottery will return to normal behavior...
Lottery::determineResultsNormally();
Laravel's Pipeline
facade provides a convenient way to "pipe" a given input through a series of invokable classes, closures, or callables, giving each class the opportunity to inspect or modify the input and invoke the next callable in the pipeline:
use Closure;
use App\Models\User;
use Illuminate\Support\Facades\Pipeline;
$user = Pipeline::send($user)
->through([
function (User $user, Closure $next) {
// ...
return $next($user);
},
function (User $user, Closure $next) {
// ...
return $next($user);
},
])
->then(fn (User $user) => $user);
As you can see, each invokable class or closure in the pipeline is provided the input and a $next
closure. Invoking the $next
closure will invoke the next callable in the pipeline. As you may have noticed, this is very similar to middleware.
When the last callable in the pipeline invokes the $next
closure, the callable provided to the then
method will be invoked. Typically, this callable will simply return the given input.
Of course, as discussed previously, you are not limited to providing closures to your pipeline. You may also provide invokable classes. If a class name is provided, the class will be instantiated via Laravel's service container, allowing dependencies to be injected into the invokable class:
$user = Pipeline::send($user)
->through([
GenerateProfilePhoto::class,
ActivateSubscription::class,
SendWelcomeEmail::class,
])
->then(fn (User $user) => $user);
Laravel's Sleep
class is a light-weight wrapper around PHP's native sleep
and usleep
functions, offering greater testability while also exposing a developer friendly API for working with time:
use Illuminate\Support\Sleep;
$waiting = true;
while ($waiting) {
Sleep::for(1)->second();
$waiting = /* ... */;
}
The Sleep
class offers a variety of methods that allow you to work with different units of time:
// Return a value after sleeping...
$result = Sleep::for(1)->second()->then(fn () => 1 + 1);
// Sleep while a given value is true...
Sleep::for(1)->second()->while(fn () => shouldKeepSleeping());
// Pause execution for 90 seconds...
Sleep::for(1.5)->minutes();
// Pause execution for 2 seconds...
Sleep::for(2)->seconds();
// Pause execution for 500 milliseconds...
Sleep::for(500)->milliseconds();
// Pause execution for 5,000 microseconds...
Sleep::for(5000)->microseconds();
// Pause execution until a given time...
Sleep::until(now()->addMinute());
// Alias of PHP's native "sleep" function...
Sleep::sleep(2);
// Alias of PHP's native "usleep" function...
Sleep::usleep(5000);
To easily combine units of time, you may use the and
method:
Sleep::for(1)->second()->and(10)->milliseconds();
When testing code that utilizes the Sleep
class or PHP's native sleep functions, your test will pause execution. As you might expect, this makes your test suite significantly slower. For example, imagine you are testing the following code:
$waiting = /* ... */;
$seconds = 1;
while ($waiting) {
Sleep::for($seconds++)->seconds();
$waiting = /* ... */;
}
Typically, testing this code would take at least one second. Luckily, the Sleep
class allows us to "fake" sleeping so that our test suite stays fast:
it('waits until ready', function () {
Sleep::fake();
// ...
});
public function test_it_waits_until_ready()
{
Sleep::fake();
// ...
}
When faking the Sleep
class, the actual execution pause is by-passed, leading to a substantially faster test.
Once the Sleep
class has been faked, it is possible to make assertions against the expected "sleeps" that should have occurred. To illustrate this, let's imagine we are testing code that pauses execution three times, with each pause increasing by a single second. Using the assertSequence
method, we can assert that our code "slept" for the proper amount of time while keeping our test fast:
it('checks if ready three times', function () {
Sleep::fake();
// ...
Sleep::assertSequence([
Sleep::for(1)->second(),
Sleep::for(2)->seconds(),
Sleep::for(3)->seconds(),
]);
}
public function test_it_checks_if_ready_three_times()
{
Sleep::fake();
// ...
Sleep::assertSequence([
Sleep::for(1)->second(),
Sleep::for(2)->seconds(),
Sleep::for(3)->seconds(),
]);
}
Of course, the Sleep
class offers a variety of other assertions you may use when testing:
use Carbon\CarbonInterval as Duration;
use Illuminate\Support\Sleep;
// Assert that sleep was called 3 times...
Sleep::assertSleptTimes(3);
// Assert against the duration of sleep...
Sleep::assertSlept(function (Duration $duration): bool {
return /* ... */;
}, times: 1);
// Assert that the Sleep class was never invoked...
Sleep::assertNeverSlept();
// Assert that, even if Sleep was called, no execution paused occurred...
Sleep::assertInsomniac();
Sometimes it may be useful to perform an action whenever a fake sleep occurs in your application code. To achieve this, you may provide a callback to the whenFakingSleep
method. In the following example, we use Laravel's time manipulation helpers to instantly progress time by the duration of each sleep:
use Carbon\CarbonInterval as Duration;
$this->freezeTime();
Sleep::fake();
Sleep::whenFakingSleep(function (Duration $duration) {
// Progress time when faking sleep...
$this->travel($duration->totalMilliseconds)->milliseconds();
});
As progressing time is a common requirement, the fake
method accepts a syncWithCarbon
argument to keep Carbon in sync when sleeping within a test:
Sleep::fake(syncWithCarbon: true);
$start = now();
Sleep::for(1)->second();
$start->diffForHumans(); // 1 second ago
Laravel uses the Sleep
class internally whenever it is pausing execution. For example, the retry
helper uses the Sleep
class when sleeping, allowing for improved testability when using that helper.