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php - PHP联系表格没有从另一个php文件中获取所有信息

问题描述

我创建了一个简单的联系表单，其中在提交表单时变量 $result 输出没有出现在该表单上方。请帮帮我。此联系表单在同一个 php 文件中工作正常，但是当我尝试使用另一个 php 文件（在我的情况下为 fetch.php）时，index.php 的 h4 标记中的变量 $result 在提交表单后显示没有输出。

index.php 
    <?php
    include 'fetch.php';
    ?>
    <!DOCTYPE html>
    <!-- -->
    <html>
        <head>
            <meta charset="UTF-8">
            <title>PHPMailer Contact Form</title>
            <style>
                label{
                    display: block;
                }
            </style>
        </head>
        <body>
            <h4> <?php echo $result; ?> </h4>  <!-- here is the problem -->
            <form method="post" action="fetch.php">
                <label>Name</label>
                <input type="text" name="name"><br>
                <label>E-mail</label>
                <input type="email" name="email"><br>
                <label>Subject</label>
                <input type="text" name="subject"><br>
                <label>Message</label>
                <textarea rows="5" cols="40" name="message"></textarea><br>
                <input type="submit" value="Submit" name="submit">  
            </form>
        </body>
    </html>

fetch.php
    <?php
     /* 
      * To change this license header, choose License Headers in 
        Project Properties.
      * To change this template file, choose Tools | Templates
      * and open the template in the editor.
      */
    //These lines must be at the top script
    use PHPMailer\PHPMailer\PHPMailer;
    use PHPMailer\PHPMailer\Exception;
    $result="";       // this is the variable i asked about
    if(isset($_POST['submit']))
    {
        $uname=$_POST['name'];
        $uemail=$_POST['email'];
        $usub=$_POST['subject'];
        $umsg=$_POST['message'];
        require 'vendor/autoload.php';             //composer's autoloader
        $mail = new PHPMailer;                     //creat object                                 

        //Server settings
        $mail->Host = 'smtp.gmail.com';            //SMTP server                                          
        $mail->isSMTP();                           //set mailer to use smtp                                   
        $mail->SMTPAuth = true;                    //enable authentication                               
        $mail->Username = 'my@gmail.com';          //smtp user name                         
        $mail->Password = 'secrete';               // smtp password                
        $mail->SMTPSecure = 'tls';                 //Enable TLS encryption                                
        $mail->Port = 587;                         //Tcp port to connect                                  
        //Content
        $mail->isHTML(true);                      //Set email format to HTML                                         
        $mail->Subject = 'From Form :'.$usub;   //subject                                     
        $mail->Body= '<h3>'                                                          
                .'Name :'.$uname
                .'<br>E-mail :'.$uemail
                .'<br>Message :'.$umsg
                . '</h3>';`enter code here`          
        //Recipients
        $mail->setFrom($uemail,$uname);                                             
        $mail->addAddress('my@gmail.com', 'to  User');             
        $mail->addReplyTo($uemail,$uname);

        if(!$mail->send())       //send mail                                                    
        {
            $result = "Message could not be sent.";
        }   
        else 
        {
            $result ="Thank you ".$uname." for contacting us.";
        }
    }

标签： php

解决方案

你有两个选择，

1.使用会话

在 fetch.php 中把这段代码放在最后 

$ _SESSION['result'] = $result ;

然后你就可以访问

$_SESSION['result'];

在 index.php 中

为了初始化会话放

session_start();

在两个文件的顶部。

2.url参数

在 fetch.php 最后添加这个

header('Location: index.php?result='.$result);

然后就可以在 index.php 中访问这个 url 参数，如下所示，

$_GET['result'];

索引.php

<?php
if(!session_id()) session_start();
?>
<!DOCTYPE html>
<!-- -->
<html>
    <head>
        <meta charset="UTF-8">
        <title>PHPMailer Contact Form</title>
        <style>
            label{
                display: block;
            }
        </style>
    </head>
    <body>
        <h4> <?php if(isset($_SESSION['result'])){ echo $_SESSION['result']; $_SESSION['result']=''; } ?> </h4>  <!-- here is the problem -->
        <form method="post" action="fetch.php">
            <label>Name</label>
            <input type="text" name="name"><br>
            <label>E-mail</label>
            <input type="email" name="email"><br>
            <label>Subject</label>
            <input type="text" name="subject"><br>
            <label>Message</label>
            <textarea rows="5" cols="40" name="message"></textarea><br>
            <input type="submit" value="Submit" name="submit">  
        </form>
    </body>
</html>

获取.php

<?php
 /* 
  * To change this license header, choose License Headers in 
    Project Properties.
  * To change this template file, choose Tools | Templates
  * and open the template in the editor.
  */
//These lines must be at the top script
if(!session_id()) session_start();
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;
$result="";       // this is the variable i asked about
if(isset($_POST['submit']))
{
    $uname=$_POST['name'];
    $uemail=$_POST['email'];
    $usub=$_POST['subject'];
    $umsg=$_POST['message'];
    require 'vendor/autoload.php';             //composer's autoloader
    $mail = new PHPMailer;                     //creat object                                 

    //Server settings
    $mail->Host = 'smtp.gmail.com';            //SMTP server                                          
    $mail->isSMTP();                           //set mailer to use smtp                                   
    $mail->SMTPAuth = true;                    //enable authentication                               
    $mail->Username = 'my@gmail.com';          //smtp user name                         
    $mail->Password = 'secrete';               // smtp password                
    $mail->SMTPSecure = 'tls';                 //Enable TLS encryption                                
    $mail->Port = 587;                         //Tcp port to connect                                  
    //Content
    $mail->isHTML(true);                      //Set email format to HTML                                         
    $mail->Subject = 'From Form :'.$usub;   //subject                                     
    $mail->Body= '<h3>'                                                          
            .'Name :'.$uname
            .'<br>E-mail :'.$uemail
            .'<br>Message :'.$umsg
            . '</h3>';`enter code here`          
    //Recipients
    $mail->setFrom($uemail,$uname);                                             
    $mail->addAddress('my@gmail.com', 'to  User');             
    $mail->addReplyTo($uemail,$uname);

    if(!$mail->send())       //send mail                                                    
    {
        $result = "Message could not be sent.";
    }   
    else 
    {
        $result ="Thank you ".$uname." for contacting us.";
    }
    $_SESSION['result'] = $result;
}
header('Location: index.php');

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