Question

很抱歉我的代码很难阅读，但我尽力使其易读。我正在保存此HTML表单中的会话值，我正在尝试保存新数据更改而不是旧数据更改，但我无法做到。

<body>
<div class="div">
<?php                                         
  $id=$_GET["id"];
  if(isset($_SESSION['kundendaten'][$id])){                           
  $result=$_SESSION['kundendaten'][$id];                                     
 }                         
?>                  
</div> 

<form action="edit.php" method="post">
 <div>Name</div><input type="text"  name="name" value="<?php echo $result['vorname'];?>"   required>       
 <div>Familyname</div><input type="text"  name="familyname" value="<?php echo $result['nachname'];?>"  required>      
 <div>Date Of Birth</div><input type="text"  name="dateofbirth" value="<?php echo $result['geburtstag'];?>" required>       
 <div>Email</div><input type="Email" name="email" value="<?php echo $result['email'];?>" required>
 <div>Telefon</div><input type="text"  name="telefon" value="<?php echo $result['telefon'];?>" required>        
 <div>Adresse</div><input type="text"  name="adresse" value="<?php echo $result['adresse'];?>" required>   
   <button type="submit">Save</button>
</form> 

<?php           
 if (isset($_POST['vorname'])) {
  $result['vorname']=$_POST['vorname'];
  echo '<div>Vorname:</div><div class="div1">'.$result['vorname'].'</div>';
   }

?>   
 </form>
 </body>

Answer 1

试试这个

<?php                                         
  $id=$_GET["id"];
  if(isset($_SESSION['kundendaten'])){
  $_SESSION['kundendaten']=$id;
}                           
  $result=$_SESSION['kundendaten'];                                                             
?>

Answer 2

如果要更改会话变量，则必须直接更改$_SESSION内的值。所以只做这样的事情

<?php           
if (isset($_POST['vorname'])) {
    $_SESSION['vorname'] = $_POST['vorname'];
    echo '<div>Vorname:</div><div class="div1">'.$_SESSION['vorname'].'</div>';
}
?>

Answer 3

您可以像其他任何变量一样设置$_SESSION：

$_SESSION['varname'] = $value;

但你必须把

session_start();

如果您希望$_SESSION数组在页面之间保持不变，请在页面顶部显示。

Answer 4

您需要先启动会话。会话值取id值

<?php                                         
      $id = $_GET["id"] ;
      session_start() ;
      if(isset($_SESSION['kundendaten']))
      {
      $_SESSION['kundendaten'] = $id ;
      }                           
      $result = $_SESSION['kundendaten'] ;                                                             
    ?>

如何更改已在会话中保存的值

4 个答案: