用php验证电子邮件

时间:2015-11-26 12:28:58

标签: php validation email

我制作了一个成功的注册/登录脚本,用于Android设备。我是PHP的新手,所以请耐心等待。

<?php
   require "init.php";
   header('Content-type: application/json');

    $email = $_POST['email'];
    $user_name = $_POST['user_name'];
    $user_pass = $_POST['user_pass'];
    $msg = "Congratulations. You are now registered to the most amazing app    
    ever!";

    $passwordEncrypted = sha1($user_pass);         



    if($email && $user_name && $user_pass){

        $sql_query = "select * from user_info WHERE email  ='".mysqli_real_escape_string($con, $email)."' or user_name 
        ='".mysqli_real_escape_string($con, $user_name)."'";

        $result = mysqli_query($con, $sql_query);   

        $results = mysqli_num_rows($result);

        if ($results){
            $don = array('result' =>"fail","message"=>"Email or username exists.");
        }else{

            $sql_query = "insert into user_info values('$email','$user_name','$passwordEncrypted');";

            if(mysqli_query($con,$sql_query)){

                $don = array('result' =>"success","message"=>"Successfully registered!Well done");
                //mail($email,"Well done",$msg);
            }
        }
    }else if(!$email || (!filter_var($_POST['email'], FILTER_VALIDATE_EMAIL))){


            $don = array('result' =>"fail","message"=>"Please enter a valid email");               


        }else if(!$user_name){

         $don = array('result' =>"fail","message"=>"Please enter your username");

        }else if(!$user_pass){

         $don = array('result' =>"fail","message"=>"Please enter a password");

        }
    }       

   echo json_encode($don);

 ?>

使用上面的代码,电子邮件未经过验证,即使用户输入theo而不是&#34; theo@gmail.com"

,也会转到数据库。

2 个答案:

答案 0 :(得分:1)

您将通过此if语句插入数据库:

if($email && $user_name && $user_pass){

这只会检查$email变量是否设置 ,而不是它是否有效。

除非$email变量是有效的电子邮件,否则将该行更改为不激活:

if($email && $user_name && $user_pass && filter_var($email, FILTER_VALIDATE_EMAIL)){

答案 1 :(得分:1)

在表单提交之前进行电子邮件验证是常规的,原因显而易见:在提交表单信息并加载下一页之前,最好先收到表单信息格式错误的警告。所以人们通常会使用Javascript。您可以在Internet上找到很多关于如何执行此操作的页面。这是一个:http://www.randomsnippets.com/2008/04/01/how-to-verify-email-format-via-javascript/

但是如果你致力于用PHP做到这一点,Kahan就会得到你的解决方案。