Ouptut current php.ini

When I cannot access the php.ini:

<?php

function to_ini($array)
{  
    $res = array();
    foreach($array as $key => $val)
    {
        if(is_array($val))
        {
            $res[] = "\n[$key]";
            foreach($val as $skey => $sval) $res[] = "$skey = ".(is_numeric($sval) ? $sval : '"'.$sval.'"');
        }
        else $res[] = "$key = ".(is_numeric($val) ? $val : '"'.$val.'"');
    }
    return implode("\r\n", $res);
}
function php_ini() {
    return to_ini(ini_get_all());
}
echo '<pre>';
print_r(php_ini());
die();