Online PHP editor | refs for F5oG9

<?php // Test results $array1 = test('array_walk'); $array2 = test('array_walk_list_each'); $array3 = test('array_walk_foreach1'); $array4 = test('array_walk_foreach2'); // Check arrays for equal var_dump($array1 == $array2, $array1 == $array3, $array1 == $array4); // Test function 1 function array_walk_list_each(&$array, $function, $userData = null) { while ( list($key, $value) = each($array) ) $function($array[$key], $key, $userData); } // Test function 2 function array_walk_foreach1(&$array, $function, $userData = null) { foreach ($array as $key => &$value ) $function($value, $key, $userData); } // Test function 3 function array_walk_foreach2(&$array, $function, $userData = null) { foreach ($array as $key => $value ) $function($array[$key], $key, $userData); } function some_function(&$value, $key, $userData) { $value = "$key => $userData"; } function test($function, $count = 10000, $arrayElements = 1000) { echo $function, ' ... '; $array = array_fill(0, $arrayElements, "some text value"); $timer = microtime(true); for( $i = 0; ++$i < $count; ) $function($array, 'some_function', 'some user data'); printf("%.3f sec\n", microtime(true) - $timer); return $array; }