PHP $ _SESSION数据不在页面间保存

Question

我现在正在靠墙敲打我的头。我一直在摆弄这个小时，而我似乎无法弄清楚。

当我从一个页面导航到另一个页面时，我的会话数据未保存。我已经在WAMP中设置了它，顺便说一句。

正在保存cookie，会话数据仅在每个脚本的开头重置时才有效。我不太确定这里要做什么。这可能是荒谬的愚蠢，但任何输入是非常感激。

我的登录脚本：

<?php 


include('../partials/_header.php'); 
include('includes/connectvars.php'); 


if(!isset($_SESSION['id'])) { //logged in? 

if(isset($_POST['submit'])) {  // form submitted? 

if(!empty($_POST['email']) && !empty($_POST['password'])) { /* Check to make sure post isn't empty in case of JS override/disable */ 

     $email = mysqli_real_escape_string($dbc, trim($_POST['email'])); 
     $password = sha1(mysqli_real_escape_string($dbc, trim($_POST['password']))); 
     /* query DB */ 
     $query = "SELECT * FROM users WHERE email = '$email' AND password = '$password'"; 
     $result = mysqli_query($dbc, $query) or die ("There was an error with your mySQL query:" . mysqli_error($dbc)); 

     if(mysqli_num_rows($result)==1) { /* Check that matching row exists in users for login */ 

       $row = mysqli_fetch_array($result); 
       $_SESSION['id'] = $row['id']; // set the session info 
       $_SESSION['type'] = $row['type']; 
       $_SESSION['name'] = $row['f_name']; 

       setcookie('id', $row['id'], time()+ (60*60*24*30)); 
       setcookie('type', $row['type'], time()+ (60*60*24*30)); 
       setcookie('name', $row['f_name'], time()+ (60*60*24*30)); 
       $home_url = '/'; //redirect not working with $_SERVER variable in WAMP. keep an eye for the future 
       header('Location: '.$home_url); 
       mysqli_close($dbc); 

     } else { /* if no match in database ask to resubmit login info or register */?> 
       <script type="text/javascript" src="../js/jquery.validate.js"></script> 
         <script> 
          $(document).ready(function(){ 
            $("#login_form").validate(); 
           }); 
         </script> 
         <div class="span-24 colborder"> 
          <form id="login_form" action="<?php $_SERVER['PHP_SELF'] ?>" method="post"> 
           <label class="error">Your email and/or password are incorrect. </label><br /> 
           <label class="error">If you haven't already signed up, feel free to <a href="user_registration.php" > register</a> </label><br /> 
           <input type="text" name="email" id="email" value="" class="email required" placeholder="example@example.com"/> <br /> 
           <input type="password" name="password" id="password" class="required" value="" /> <br /> 
           <input type="submit" name="submit" value="Login" /> 
          </form> 
         </div> 

    <?php 


     }/* end conditional to check $rows array for username pw match */ 
    } /* end conditional to check that form isn't blank */ 
    else { /* If form is blank ask to resubmit or register */?> 
         <script type="text/javascript" src="../js/jquery.validate.js"></script> 
         <script> 
          $(document).ready(function(){ 
            $("#login_form").validate(); 
           }); 
         </script> 
     <div class="span-24 colborder"> 
      <form id="login_form" action="<?php $_SERVER['PHP_SELF'] ?>" method="post"> 
       <label class="error">You must enter your email and password if you wish to continue.</label><br /> 
       <input type="text" name="email" id="email" value="" class="email required" placeholder="example@example.com"/> <br /> 
       <input type="password" name="password" id="password" class="required" value="" /> <br /> 
       <input type="submit" name="submit" value="Login" /> 
      </form> 
     </div> 

    <?php 

    } // end else to resubmit in case of blank form 
    } /* end check if form has been submitted */ else{ /* prompt for login if page visited but login form not submitted */ ?> 
     <script type="text/javascript" src="../js/jquery.validate.js"></script> 
         <script> 
          $(document).ready(function(){ 
            $("#login_form").validate(); 
           }); 
         </script> 
     <div class="span-24 colborder"> 
      <form id="login_form" action="<?php $_SERVER['PHP_SELF'] ?>" method="post"> 
       <label class="error">You must be logged in to do that!.</label><br /> 
       <input type="text" name="email" id="email" value="" class="email required" placeholder="example@example.com"/> <br /> 
       <input type="password" name="password" id="password" class="required" value="" /> <br /> 
       <input type="submit" name="submit" value="Login" /> 
      </form> 
     </div> 

                    <?php 

                    } 

    } /* end check if cookie isset */ else { //redirect if cookies & session is already set 
                $home_url = '/'; 
                header('Location: '.$home_url); 
                 } 


?> 


<?php include('partials/_footer.php'); ?> 

这是我的报头（其包括如果饼干isset该组会话变量）

<?php //set session if isset cookie but not session 
       session_start(); 
if(!isset($_SESSION['id'])) { 

     if(isset($_COOKIE['id']) && isset($_COOKIE['name']) && isset($_COOKIE['type'])) { 
       $_SESSION['id'] = $_COOKIE['id']; 
       $_SESSION['name'] = $_COOKIE['name']; 
       $_SESSION['type'] = $_COOKIE['type']; 
      }  
    } //end if !isset session verify 


?> 

并且取决于他们的会话ID的菜单输出的一个例子：

  <?php 
     if(isset($_SESSION['type']) && $_SESSION['type'] == "rnr") { //start special runner menu options 
    ?> 
      <ul class="main_menu"> 
      <li id="how_it_works" class="main_menu"><a class="main_menu" href="/user/bid_task.php">Bid on a task</a></li> 
      <li id="our_runners" class="main_menu"><a class="main_menu" href="/our_runners.php">Our Runners</a></li> 
      <li id="login" class="main_menu"><a class="main_menu" href="/user/my_account.php">My account</a></li> 
      <li id="register" class="main_menu"><a class="main_menu" href="/user/logout.php">Logout</a></li> 
     </ul>  


    <?php } /* end runner menu */ ?> 

在此先感谢。

Answer 1

头文件包含在您的登录脚本中调用setcookie函数之前。根据我所看到的，cookie不会设置为你做这个条件检查的时间：因为

if(isset($_COOKIE['id']) && isset($_COOKIE['name']) && isset($_COOKIE['type'])) 

而且它从来没有得到的条件语句中和其后的行不会在头文件得到执行：

$_SESSION['id'] = $_COOKIE['id']; 
$_SESSION['name'] = $_COOKIE['name']; 
$_SESSION['type'] = $_COOKIE['type'];