Is there an easy way in PHP to convert from strings like '256M', '180K', '4G' to their integer equivalents?

Question

I need to test the value returned by ini_get(\'memory_limit\') and increase the memory limit if it is below a certain threshold, however this ini_get(\'me

Answer 1

Since you will get an error with newer versions of PHP if the value has a CHAR at the end of it, you might need some extra testing:

private function toBytes($str){
    $val = trim($str);
    $last = strtolower($str[strlen($str)-1]);
    if (!is_numeric($last)) {
        $val = substr($val,0,strlen($val)-1);
        switch($last) {
            case 'g': $val *= 1024;
            case 'm': $val *= 1024;
            case 'k': $val *= 1024;
        }
    }
    return $val;
}

This works with no warnings