- var_dump: documentation ( source)
- var_export: documentation ( source)
- sort: documentation ( source)
<?php
$arr1 = [11, 10, '12', 'a1'];
sort($arr1);
var_export($arr1);
echo PHP_EOL;
$arr2 = ['12', 'a1', 11, 10];
sort($arr2);
var_export($arr2);
echo PHP_EOL;
var_dump($arr1 === $arr2);