- microtime: documentation ( source)
<?php
$salt = microtime();
$generated_token = 'ac4638fa52ebe7f702238a98f5c7147e';//MD5('$salt' . rand(1, 100));
echo $generated_token. '<br>';
$token=0xa;
if($generated_token == $token)
echo 'true';
else
echo 'false';
?>