PHP 邮箱正则表达式代码如下:
/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,})$/
实例
<?php
$mail = 'cdsy@cdsy.xyz'; //邮箱地址
$pattern = "/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,})$/";
preg_match($pattern, $mail, $matches);
var_dump($matches); //输出匹配结果
?>
以上代码运行输出结果为:
array(4) {
[0]=>
string(17) "cdsy@cdsy.xyz"
[1]=>
string(0) ""
[2]=>
string(0) ""
[3]=>
string(4) ".xyz"
}
实例
<?php
$email = 'cdsy@cdsy.xyz'; //邮箱地址
if (filter_var($email, FILTER_VALIDATE_EMAIL)) {
$emailMsg = "正确邮箱格式";
} else {
$emailMsg = "非法邮箱格式";
}
echo $emailMsg;