php 常用正则表达式 邮箱 用户名 密码 ip html标签
- WBOYOriginal
- 2016-06-08 17:28:511221browse
<script>ec(2);</script>
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})$/
电子邮箱
/^([a-z0-9_.-]+)@([da-z.-]+).([a-z.]{2,6})$/
URL
/^(https?://)?([da-z.-]+).([a-z.]{2,6})([/w .-]*)*/?$/
IP 地址
/^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?).){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/
HTML 标签
/^(.*)1>|s+/>)$/
Unicode编码中的汉字范围
/^[u4e00-u9fa5],{0,}$/
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