<?php
error_reporting(E_ALL);
//of the INI constants (On, Off, True, False, Yes, No and None)
foreach([["Shit"=>"On"],["Shit"=>"Off"],["Shit"=>"True"],["Shit"=>"False"],["Shit"=>"Yes"],["Shit"=>"No"],["Shit"=>"None"]] as $key=>$val)
{
var_dump($key,$val,ini_set($key,$val),ini_get($key))
}