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

I can only think of a slight variation on what you're doing:

function int_from_bytestring($byteString) {
  $ret = 0;
  if (preg_match('!^\s*(\d+(?:\.\d+))\s*([KMNGTPE])B?\s*$!', $byteString, $matches)) {
    $suffix = " KMGTPE";
    $index = strpos($suffix, $matches[2]);
    if ($index !== false) {
      $ret = $matches[1];
      while ($index--) {
        $matches *= 1024;
      }
    }
  }
  return intval($ret);
}