added memory limit functions

src/PhPease/Php/functions.php

@@ -84,14 +84,10 @@ function get_memory_limit() {
 }
 
 /**
- * get remaining memory in kilobytes
+ * get remaining memory inbytes
  * @return float|int
  */
 function get_remaining_memory()
 {
-    $current_memory_usage = memory_get_usage(); // in bytes
-    $remaining_memory = get_memory_limit() * 1024 - $current_memory_usage; // in bytes
-
-    // convert remaining memory from bytes to kilobytes
-    return $remaining_memory / 1024;
+    return get_memory_limit() * 1024 - memory_get_usage();
 }

src/PhPease/Variable/functions.php

@@ -128,4 +128,22 @@ function var_to_float($var, int $decimals = 2): float
     $var = preg_replace('/[^0-9\.]/', '', $var);
     $var = number_format((float)$var, $decimals, '.', null);
     return floatval($var);
+}
+
+/**
+ * get size of array in bytes
+ * @param array $array
+ * @return int
+ */
+function get_array_size(array $array): int
+{
+    $serializedArray = serialize($array);
+
+    if (function_exists('mb_strlen')) {
+        $sizeInBytes = mb_strlen($serializedArray, '8bit');
+    } else {
+        $sizeInBytes = strlen($serializedArray);
+    }
+
+    return $sizeInBytes;
 }

tests/VariableTest.php

@@ -134,4 +134,13 @@ public function testArrayKeysExists()
 
         $this->assertTrue(array_keys_exists($required, $data));
     }
+
+    public function testGetArraySize()
+    {
+        $a1 = [
+            'k1' => '123'
+        ];
+
+        var_dump( \PhPease\Variable\get_array_size($a1));
+    }
 }