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邮箱地址正则表达式验证

作者：admin来源：网络浏览：次时间：2020-10-23 10:42:37我要评论

导读：邮箱地址正则表达式验证

邮箱地址正则表达式验证

header ( "Content-Type: text/html; charset=UTF-8" );

  $reply = "";

  if ( isset($_POST["email_address"]) )

  {

    $email_address = $_POST["email_address"];

    $pattern = "/^([0-9A-Za-z\\-_\\.]+)@([0-9a-z]+\\.[a-z]{2,3}(\\.[a-z]{2})?)$/i";

    if ( preg_match( $pattern, $email_address ) )

    {

      $reply = "您输入的电子邮件地址合法<br /><br />\n";

      $user_name = preg_replace( $pattern ,"$1", $email_address );

      $domain_name = preg_replace( $pattern ,"$2", $email_address );

      $reply .= "用户名：".$user_name."<br />\n";

      $reply .= "域名：".$domain_name."<br />\n\n";

    }

    else

    {

      $reply = "您输入的电子邮件地址不合法";

    }

  }