服务器与客户端的邮箱地址验证函数
服务器与客户端的邮箱地址验证函数
邮箱地址验证有很多方法。在浏览器端，js邮箱验证可以通过正则表达式检测。| 代码如下 | |
function isEmail(email) { return /^((([a-z]|d|[!#$%&'*+-/=?^_`{|}~]|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])+(.([a-z]|d|[!#$%&'*+-/=?^_`{|}~]|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])+)*)|((x22)((((x20|x09)*(x0dx0a))?(x20|x09)+)?(([x01-x08x0bx0cx0e-x1fx7f]|x21|[x23-x5b]|[x5d-x7e]|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])|(([x01-x09x0bx0cx0d-x7f]|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF]))))*(((x20|x09)*(x0dx0a))?(x20|x09)+)?(x22)))@((([a-z]|d|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])|(([a-z]|d|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])([a-z]|d|-|.|_|~|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])*([a-z]|d|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF]))).)+(([a-z]|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])|(([a-z]|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])([a-z]|d|-|.|_|~|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])*([a-z]|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])))$/i.test(email); } 或 function validateEmail(elementValue) { var emailPattern = /^[a-zA-Z0-9._]+[a-zA-Z0-9]+@[a-zA-Z0-9]+.[a-zA-Z]{2,4}$/; return emailPattern.test(elementValue); } function checkEmail(mail) { return /^[w-]+(.[w-]+)*@([a-z0-9-]+(.[a-z0-9-]+)*?.[a-z]{2,6}|(d{1,3}.){3}d{1,3})(:d{4})?$/.test(mail); } | |
调用很简单:
| 代码如下 | |
if (isEmail('youremail@yourdomain.com')){ console.log(' www.111cn.net This is email is valid'); }View Code | |
如果是进行服务器端验证。像php，则最简单的莫过于:
| 代码如下 | |
$a='/([w._]{2,10})@(w{1,}).([a-z]{2,4})/'; $b='1412424545645454545454545k@qq.com'; if( preg_match($a,$b)){ echo "电子邮件合法"; }else{ echo "电子邮件不合法啊"; } | |
你要判断一整段字符串是否都匹配就要用断言。如^ $
/^([w._]{2,10})@(w{1,}).([a-z]{2,4})$/
注意头和尾加上了^ $