正则的写法

手机号的正则：：$pattern='/^1(?:3[0-9]|5[012356789]|8[0256789]|7[0678])(\-?)\d{4}\1\d{4}$/';

手机号  正则的匹配判断

if(preg_match($pattern,$tel)){
            echo "手机号正确";
}

//移动号段：：：$cmcc = array(134,135,136,137,138,139,147,150,151,152,157,158,159,178,182,183,184,187,188);
//联通号段：：：$cucc = array(130,131,132,145,155,156,171,175,176,185,186);
//电信号段：：：$ctcc = array(133,149,153,173,177,180,181,189);

邮箱的正则：：：$pattern = "/^([0-9A-Za-z\\-_\\.]+)@([0-9a-z]+\\.[a-z]{2,3}(\\.[a-z]{2})?)$/i";

邮箱   正则的匹配判断
if(preg_match($pattern,$email)){
            echo "邮箱正确";
}

正则匹配中文汉字根据页面编码不同而略有区别：

GBK/GB2312编码：[x80-xff]+ 或 [xa1-xff]+

UTF-8编码：[x{4e00}-x{9fa5}]+/u