| protected getUpgradeFileVersion ( string $filename ) : integer | false | ||
| $filename | string | The upgrade filename. No full path. |
| return | integer | false | |
protected function getUpgradeFileVersion($filename)
{
preg_match('/^([0-9]{10})([\\.a-z0-9-_]+)?\\.(php)$/i', $filename, $matches);
if (isset($matches[1])) {
return (int) $matches[1];
}
return false;
}