PHP preg_match的簡單使用,驗證郵箱地址

 1 <?php 2     function match_email($email) { 3         $pattern = "/\w+@(\w|\d)+\.\w{2,3}/i"; 4         preg_match($pattern, $email, $matches); 5         return $matches; 6     } 7      8     $email1 = "test@qq.com"; 9     $email2 = "test@163.com";10     $email3 = "163@qq163.com";11     $email4 = "test%@q..q.com";12     var_dump(match_email($email1));13     var_dump(match_email($email2));14     var_dump(match_email($email3));15     var_dump(match_email($email4));16 ?>

輸出

array(2) { [0]=> string(11) "test@qq.com" [1]=> string(1) "q" } array(2) { [0]=> string(12) "test@163.com" [1]=> string(1) "3" } array(2) { [0]=> string(13) "163@qq163.com" [1]=> string(1) "3" } array(0) { }