Php（会话）...如何将文本框值放入会话并将其传递给另一个页面？我收到错误

Question

<?php
session_start();
 ?>
 <form action="HardDisk.php" method="post">//form
 <input type="text" name="user" />
 <?php
if(isset($_POST['user']))
 {
 $_SESSION['userGet']=$_POST['user'];
 }
 ?>
 <input type="submit" value="submit" />
 </form>

  2nd page
 <?php
 session_start();
 ?>
 <?php
 if (isset($_SESSION['userGet'])) {
$form_value = $_SESSION['userGet'];
}
echo $form_value ;
?>

............................................... .................................................. .........

Answer 1

您已使用文本框名称检查提交按钮名称。

 <form action="HardDisk.php" method="post">//form
 <input type="text" name="user" />
 <input type="submit" value="submit" name="submit" />
 </form>
<?php
session_start();
if(isset($_POST['submit'])&&isset($_POST['user'])) {
    $_SESSION['userGet']=$_POST['user'];
}
?>

在你的第二页

<?php
session_start(); 
if (isset($_SESSION['userGet'])) {
    echo $form_value = $_SESSION['userGet'];
}

Answer 2

将提交按钮命名为submit，然后使用以下PHP代码：

if(isset($_POST['submit'])){
    if(isset($_POST['user']))
    {
        $_SESSION['userGet']=$_POST['user'];
    }
}