- var_dump: documentation ( source)
- in_array: documentation ( source)
<?php
$value = 42754;
$_ = array(0xA702, 0xA701, 0xA700);
var_dump(in_array($value, $_), $value === $_[0]);
$value = 3;
$_ = array(00011, 00001, 00100);
var_dump(in_array($value, $_), $value === $_[0], $_[0]);