$ _SESSION이 페이지 사이에 값을 전달하지 않습니다. PHP

Question

3 개의 파일이 있습니다. login.php에서 (loginFunctions.php, login.php, index.php) , 내가 값을 가지고 값을 확인하고 login.php로 돌아 준비된 명령문에서 userID을 선택 loginFunction.php에 전달합니다. 그런 다음 login.php은 (get('value'))이라는 메서드를 호출하여 userID을 전달하고 사용자 정보를 반환합니다. 나는 로그인과 색인 페이지에서 세션을 시작했다. 세션에 저장된 정보를 반향하려고했지만 아무것도 반환하지 않았습니다.

내 코드 :

loginFunction.php

<?php 

function absolute_url($page = 'index.php') { 
    //header('Location: http:\\localhost'); 
    //exit(); //terminates the script 

    $url = 'http://' . $_SERVER['HTTP_HOST'] . dirname($_SERVER['PHP_SELF']); 
    $url = rtrim($url, '/\\'); 
    $url .= '/' . $page; 

    return $url; 
} 

function checkLogin($email = '', $password = '') { 
    $errors = array(); 

    if (empty($email)){ 
     $errors[] = 'You must enter your email'; 
    } 
    if (empty($password)){ 
     $errors[] = 'You must enter a password'; 
    } 
    if (empty($errors)) { 
////set up database econnection 
     require_once 'DO_Classes/mysqli_connect.php'; 

     $db = new Database(); 
     $dbc = $db->getConnection(); 

     $stmt = $dbc->prepare("SELECT user_ID FROM User WHERE user_email=? AND AES_DECRYPT(user_password, 'p0ly')=?"); 

     if ($stmt) { 
      $stmt->bind_param('ss', $email, $password); 

      if ($stmt->execute()) { 
       $stmt->store_result(); 
       $stmt->bind_result($user_ID); 
       $stmt->fetch(); 
       $stmt->close(); 
       if(!empty($user_ID)){ 
        return array(true, $user_ID); 
       }else{ 
        /* 
        * <div class=\"alert alert-success alert-dismissable\"> 
           <button type=\"button\" class=\"close\" data-dismiss=\"alert\" aria-hidden=\"true\">&times;</button> 
           Invalid email or password 
          </div> 
        */ 
        $errors[] = '<div class="alert alert-danger alert-dismissable"> 
           <button type="button" class="close" data-dismiss="alert" aria-hidden="true">&times;</button> 
           <p align="center">Invalid email or password</p> 
          </div>'; 
       } 

      } else { 
       $errors[] = 'Passwords do not match'; 
      } 
     }else { 
      echo '<p class="error"> Oh dear. There was a databse error</p>'; 
      echo '<p class = "error">' . mysqli_error($stmt) . '</p>'; 
     } 
    } 
    return array(false, $errors); 
} 

?> 

login.php

<?php 
if (isset($_POST['submitted'])) { 
    //require_once is similar to 'include' but ensures the code is not copied multiple times 
    require_once('Functions/loginFunctions.php'); 

    //list() is a way of assigning multiple values at the same time 
    //checkLogin() function returns an array so list here assigns the values in the array to $check and $data 
    list($check, $data) = checkLogin($_POST['email'], $_POST['password']); 


    if ($check) { 
     //setcookie('FName', $data['FName'], time()+ 900) ; //cookie expires after 15 mins 
     //setcookie('LName', $data['LName'], time() + 900) ; 
     session_start(); 
     require_once 'Classes/DO_Users.php'; 
     $user = new DO_User(); 
     $user->get($data); 
     //use session variables instead of cookies 
     //these variables should now be available to all pages in the application as long as the users session exists 
     $_SESSION['userID'] = $user->userID; 
     $_SESSION['userType'] = $user->userTypeID; 
     $_SESSION['last_activity'] = time(); //your last activity was now, having logged in. 
     $_SESSION['expire_time'] = 60 * 5; //expire time in seconds: three hours (you must change this) 
     //to enable $_SESSION array to be populated we always need to call start_session() - this is done in header.php 
     //print_r is will print out the contents of an array 
     //print_r($_SESSION); 
     // 
     //Redirect to another page 

     $url = absolute_url('index.php'); //function defined in Loginfunctions.php to give absolute path for required page 
     //this version of the header function is used to redirect to another page 
     header("Location: $url"); //since we have entered correct login details we are now being directed to the home page 
     exit(); 
    } else { 
     $errors = $data; 
    } 
} 


if (!empty($errors)) { 
    //foreach is a simplified version of the 'for' loop 
    foreach ($errors as $err) { 
     echo "$err <br />"; 
    } 

    echo '</p>'; 
} 

//display the form 
?> 

는 index.php, 나는 session_start();을 가지고 있지만 아무것도 반환하지 않습니다 require_once 'header.php';라고, 왜?

Answer 1

내가 발견 한 문제는 준비된 성명서 때문이었습니다. 준비된 문의 선언에 값이 없어서 준비된 명령문이 작동하지 않습니다.