- var_dump: documentation ( source)
<?php
$a = '0e123';
var_dump($a == 0);
var_dump($a == '0');
var_dump($a == "0");
var_dump($a == true);
var_dump($a == '0xe0');
var_dump($a == '0x0e');
var_dump($a == '1x0e');
var_dump($a == ('0' . 'e'));
var_dump($a == (0 . 'e'));