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

From the PHP website for ini_get():

function return_bytes($val) {
    $val = trim($val);
    $last = strtolower($val[strlen($val)-1]);
    switch($last) {
        // The 'G' modifier is available since PHP 5.1.0
        case 'g':
            $val *= 1024;
        case 'm':
            $val *= 1024;
        case 'k':
            $val *= 1024;
    }

    return $val;
}