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