Summary of regular expressions commonly used in php forms-PHP Tutorial-php.cn

这篇文章通过实例代码给大家介绍了php表单习惯使用的正则表达式，非常不错，具有参考借鉴价值，需要的朋友参考下吧

php表单常用正则表达式，代码如下所示：

function is_email($str){ //检验email return preg_match("/^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/", $str); } function is_url($str){ //检验网址 return preg_match("/^http:\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-&_~`@[\]\':+!]*([^<>\"]) *$/", $str); } function is_qq($str){ //检验qq return preg_match("/^[1-9]\d{4,8}$/", $str); } function is_zip($str){ //检验邮编 return preg_match("/^[1-9]\d{5}$/", $str); } function is_idcard($str){ //检验身份证 return preg_match("/^\d{15}(\d{2}[A-Za-z0-9])?$/", $str); } function is_chinese($str){ 检验是否是中文 return ereg("^[".chr(0xa1)."-".chr(0xff)."]+$",$str); } function is_english($str){ //检验是否是英文 return preg_match("/^[A-Za-z]+$/", $str); } function is_mobile($str){ //检验是否是手机 return preg_match("/^((\(\d{3}\))|(\d{3}\-))?13\d{9}$/", $str); } function is_phone($str){ //建云那是否是电话 return preg_match("/^((\(\d{3}\))|(\d{3}\-))?(\(0\d{2,3}\)|0\d{2,3}-)?[1-9]\d{6,7}$/", $str); } function is_safe($str){ return (preg_match("/^(([A-Z]*|[a-z]*|\d*|[-_\~!@#\$%\^&\*\.\(\)\[\]\{\}<>\?\\\/\'\"]*)|. {0,5})$|\s/", $str) != 0); } }

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PS：下面再给大家分享一段代码

]+(?:\([\w\d]+\)|([^[:punct:]\s]|\/)))/'; return Regex::PublicMethod($pattern, $subject); } /** * @URL地址 */ public static function UrlAddress($subject) { $pattern='/\b(([\w-]+:\/\/?|www[.])[^\s()<>]+(?:\([\w\d]+\)|([^[:punct:]\s]|\/)))/'; return Regex::PublicMethod($pattern, $subject); } /** * @有效HTTP地址 */ public static function EffectiveHttp($subject) { $pattern='/\b(([\w-]+:\/\/?|www[.])[^\s()<>]+(?:\([\w\d]+\)|([^[:punct:]\s]|\/)))/'; return Regex::PublicMethod($pattern, $subject); } /** * @身份证 */ public static function Identity($subject) { $pattern='/(^\d{15}$)|(^\d{17}([0-9]|X)$)/'; return Regex::PublicMethod($pattern, $subject); } /** * @IPv4 */ public static function Ipv4($subject) { $pattern='/^(((\d{1,2})|(1\d{2})|(2[0-4]\d)|(25[0-5]))\.){3}((\d{1,2})|(1\d{2})|(2[0-4]\d)|(25[0-5]))$/'; return Regex::PublicMethod($pattern, $subject); } /** * @IPv6 */ public static function Ipv6($subject) { $pattern='/^([\da-fA-F]{1,4}:){7}[\da-fA-F]{1,4}$/'; return Regex::PublicMethod($pattern, $subject); } /** * @匹配正则公共方法 */ public static function PublicMethod($pattern, $subject){ if(preg_match($pattern, $subject)){ return true; } return false; } }

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