/**
* Validate a value as integer
*
* @static
*
* @param mixed $value
*
* @return int|bool int or false in case of failure to convert to int
*/
public static function validate_int($value)
{
if (!isset(self::$has_filters)) {
self::$has_filters = extension_loaded('filter');
}
if (self::$has_filters) {
return filter_var($value, FILTER_VALIDATE_INT);
} else {
return self::emulate_filter_int($value);
}
}
