= $value && $min <= $value; } public static function equals($a, $b) { return $a == $b; } public static function email($str) { return filter_var($str, FILTER_VALIDATE_EMAIL) ? true : false; } public static function url($str) { if (strpos($str, '//') === 0) { $str = 'http:' . $str; } return filter_var($str, FILTER_VALIDATE_URL) ? true : false; } public static function intNumber($str) { return filter_var($str, FILTER_VALIDATE_INT) ? true : false; } public static function floatNumber($str) { return filter_var($str, FILTER_VALIDATE_FLOAT) === false; } public static function natureNumber($number) { if (preg_match('/^0$/', $number)) { return true; } if (preg_match('/^[1-9][0-9]?/', $number)) { return true; } return false; } public static function idCard($str) { $validator = new IdCard(); return $validator->validate($str); } public static function phone($str) { $pattern = '/^(13[0-9]|15[0-3]|15[5-9]|180|18[5-9])[0-9]{8}$/'; return preg_match($pattern, $str) ? true : false; } public static function name($str) { $pattern = '/^[\x{4e00}-\x{9fa5}A-Za-z0-9]{2,15}$/u'; return preg_match($pattern, $str) ? true : false; } public static function password($str) { $pattern = '/^[A-Za-z0-9]{6,16}$/'; return preg_match($pattern, $str) ? true : false; } public static function birthday($str) { $pattern = '/^(19|20)\d{2}-(1[0-2]|0[1-9])-(0[1-9]|[1-2][0-9]|3[0-1])$/'; return preg_match($pattern, $str) ? true : false; } public static function date($str, $format = 'Y-m-d') { $date = date($format, strtotime($str)); return $str == $date; } }