How to write the login and registration front-end verification input format

When logging in and registering, sometimes the front-end needs to verify the legality of the content input format. Here are some simple and commonly used verifications

1. Verify mobile phone number

var reg= /^1[3-578]\d{9}$/

2. Verify name

 var reg=/^[\u4e00-\u9fa5a-zA-Z0-9]{2,10}$/

3. Verify password

var reg = /^(?!\D+$)(?![^a-zA-Z]+$)\S{8,}$/;//密码必须是数字 字母 特殊字符 不支持空格  最少8位

4. Verify verification code

var reg = /^[a-zA-Z0-9]{4}$///只能是4位的字母和数字

These four should be the most commonly used verifications

reg.test(验证的内容);

The above is the detailed content of How to write the login and registration front-end verification input format. For more information, please follow other related articles on the PHP Chinese website!