版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/QinDaBao_/article/details/87865527
1.隐藏客户部分手机号码:
$phone = '13812344857';
$preg = "/(1\d{1,2})\d\d(\d{0,2})/";
$re = "\$1****\$3";
echo preg_replace($preg,$re,$phone);
结果为: 138****4857
常用正则表达式:
用户名 | /^[a-z0-9_-]{3,16}$/ |
---|---|
密码 | /^[a-z0-9_-]{6,18}$/ |
十六进制值 | /^#?([a-f0-9]{6}|[a-f0-9]{3})$/ |
电子邮箱 | /^([a-z0-9_\.-]+)@([\da-z\.-]+)\.([a-z\.]{2,6})$/ /^[a-z\d]+(\.[a-z\d]+)*@([\da-z](-[\da-z])?)+(\.{1,2}[a-z]+)+$/ |
URL | /^(https?:\/\/)?([\da-z\.-]+)\.([a-z\.]{2,6})([\/\w \.-]*)*\/?$/ |
IP 地址 | /((2[0-4]\d|25[0-5]|[01]?\d\d?)\.){3}(2[0-4]\d|25[0-5]|[01]?\d\d?)/ /^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/ |
HTML 标签 | /^<([a-z]+)([^<]+)*(?:>(.*)<\/\1>|\s+\/>)$/ |
删除代码\\注释 | (?<!http:|\S)//.*$ |
Unicode编码中的汉字范围 |