04_strings.php

<?php

// Create simple string
$name = 'bikah';
$string = 'hello i am $name. i am 28';
$string2 = "hello i am $name. i am  28";
echo $string . '<br>';
echo $string2 . '<br>';

// String concatenation
echo 'hello' . 'world' . ' and php' . '<br>';

// String functions
// $string = "    Hello World      ";

// echo "1 - " . strlen($string) . '<br>' . PHP_EOL;
// echo "2 - " . trim($string) . '<br>' . PHP_EOL;
// echo "3 - " . ltrim($string) . '<br>' . PHP_EOL;
// echo "4 - " . rtrim($string) . '<br>' . PHP_EOL;
// echo "5 - " . str_word_count($string) . '<br>' . PHP_EOL;
// echo "6 - " . strrev($string) . '<br>' . PHP_EOL;
// echo "7 - " . strtoupper($string) . '<br>' . PHP_EOL;
// echo "8 - " . strtolower($string) . '<br>' . PHP_EOL;
// echo "9 - " . ucfirst('hello') . '<br>' . PHP_EOL;
// echo "10 - " . lcfirst('HELLO') . '<br>' . PHP_EOL;
// echo "11 - " . ucwords('hello world') . '<br>' . PHP_EOL;
// echo "12 - " . strpos($string, 'world') . '<br>' . PHP_EOL; // Change into world
// echo "13 - " . stripos($string, 'world') . '<br>' . PHP_EOL;
// echo "14 - " . substr($string, 8) . '<br>' . PHP_EOL;
// echo "15 - " . str_replace('World', 'PHP', $string) . '<br>' . PHP_EOL;
// echo "16 - " . str_ireplace('world', 'PHP', $string) . '<br>' . PHP_EOL;

// Multiline text and line breaks
$longText = "
hello,my name is  Zura
i am 27,
i love my daughter
";

echo $longText . '<br>';
echo nl2br($longText) . '<br>';

// Multiline text and reserve html tags
$longText = "
hello,my name is  <b>Zura</br
i am <b>27</b>,
i love my daughter
";

echo "1-" . $longText . '</br>';
echo "2-" . nl2br($longText) . '</br>';
echo "3-" . htmlentities($longText) . '</br>';
echo "4-" . nl2br(htmlentities($longText) . '</br>');
echo  html_entity_decode('&lt;b&gt;zura&lt;/b&gt;');




// https://www.php.net/manual/en/ref.strings.php