- var_dump: documentation ( source)
- uniqid: documentation ( source)
- get_defined_vars: documentation ( source)
- array_search: documentation ( source)
- md5: documentation ( source)
e<?php
$a = 'foo';
$temporaryA = $a;
$a = md5('value for finding ' . uniqid());
$variables = get_defined_vars();
$key = array_search($a, $variables, true);
var_dump($key);
$a = $temporaryA;
unset ($temporaryA);