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我已經通過本網站上的許多帖子搜索瞭解爲什麼我的會話變量未被識別，但我一直無法找出解決方案。通過會話將變量攜帶到另一個文件
這其實就是我想要做的。我有兩個PHP文件。第一個我有以下代碼。我已經開始了一個會議。
PHP文件1
$profile_viewer = $_GET['user'];
$_SESSION['viewer'] = $profile_viewer;
PHP文件2
$_SESSION['viewer'] = $profile_viewer;
我不斷收到錯誤：Notice: Undefined variable: profile_viewer
我在做什麼錯把$profile_viewer在會話，然後要求它？
編輯：
文件1
$profile_user = $_GET['user'];
$_SESSION['viewer'] = $profile_user;
File 2
$user = new User();
//$profile_user = $_GET['user'];
$profile_user = $_SESSION['viewer'];
echo $profile_user;
$friend_status = $_POST['friend_status'];
$okay = true;
if ($okay) {
$add_friend_sql = "
INSERT INTO friends
(friend_one, friend_two, date)
VALUES(?, ?, NOW())
";
$add_friend_stmt = $con->prepare($add_friend_sql);
$add_friend_stmt->execute(array($user_id, $profile_user));
}
文件的完整代碼1
<?php
ini_set('display_errors', 1);
error_reporting(E_ALL);
require_once '../core/init_account.php';
if(Session::exists('home')) {
echo '<p>' . Session::flash('home') . '</p>';
}
if(!$user->isLoggedIn()) {
Redirect::to('../index');
}
$profile_user = $_GET['user'];
$_SESSION['viewer'] = $profile_user;
// If you make a file function, you can change where things are saved
// You can also change the destination (for portability)
function UploadFile($fileArray = array(), $destinationFolder = 'profile_images/') {
$filename = $fileArray['file']['name'];
$tmp_name = $fileArray['file']['tmp_name'];
$filesize = $fileArray['file']['size'];
$file_error = $fileArray['file']['error'];
$file = $fileArray['file'];
// Save all the default data.
// Success and error should be set by default to fail
$return['error'] = true;
$return['success'] = false;
$return['file']['dest'] = $destinationFolder.$filename;
$return['file']['size'] = $filesize;
if($file_error == 0)
$return['error'] = false;
// I added a directory creation function so you don't have to
// manually make folders. This will do it for you.
if(!is_dir($destinationFolder))
mkdir($destinationFolder,0755,true);
// If your filename is not empty, return success or fail of upload
if (!empty($filename))
$return['success'] = (move_uploaded_file($tmp_name, $destinationFolder.$filename));
return $return;
}
// Create a save-to-database function so it's easier and reusable
function SaveToDb($con,$filename = false) {
// Return fail immediately if the connection is false or image is invalid
if(empty($filename) || !$con)
return false;
$user_id = (isset($_SESSION['user']) ? $_SESSION['user'] : "");
$img_insert_sql = "
INSERT INTO profile_img
(user_id, img)
VALUES (?, ?)
";
if($img_insert_stmt = $con->prepare($img_insert_sql)) {
$img_insert_stmt->execute(array($user_id, $filename));
return true;
}
return false;
}
// Get current profile img
function getPhoto($con) {
$user_id = (isset($_SESSION['user']) ? $_SESSION['user'] : "");
$profile_viewer = $_GET['user'];
if ($profile_viewer == $user_id) {
/*$img_select_sql = "
SELECT *
FROM profile_img
WHERE user_id = ?
ORDER BY id DESC
LIMIT 1
";*/
$img_select_sql = "
SELECT i.*
FROM profile_img i
WHERE user_id IN (?, ?)
ORDER BY id DESC
LIMIT 1;
";
}
else {
//echo "This is not your image";
echo $profile_viewer;
$img_select_sql = "
SELECT i.*
FROM profile_img i
WHERE user_id IN (?, ?)
ORDER BY id DESC
LIMIT 1;
";
}
if ($select_img_stmt = $con->prepare($img_select_sql)) {
$select_img_stmt->execute(array($user_id, $profile_user));
$rows = $select_img_stmt->fetchAll(PDO::FETCH_ASSOC);
foreach ($rows as $row) {
//$status = $row['status'];
return $row;
}
}
}
// Make sure all functions above are include here. Checks for post
if(isset($_POST['create'])) {
// Try uploading
$upload = UploadFile($_FILES);
// If upload fails
if(!$upload['success']) {
echo '<h3>Sorry, an error occurred</h3>';
}
else {
// You could add error handling here based on the results of
// each function's success or failure below.
// Try to save it
$saveToDb = SaveToDb($con,$upload['file']['dest']);
// Get the profile from image name
$profPic = ($saveToDb)? getPhoto($con,$upload['file']['dest']) : false;
}
}
$profPic = getPhoto($con);
?>
</head>
<body>
<?php
include_once("../analyticstracking.php");
if($user->hasPermission('User')) {
include 'nav/navUser.php';
}
?>
<div id="main">
<?php
$profile_viewer_message = null;
if($profile_user == $user_id) {
echo $profile_viewer_message = "This is your profile.";
} else {
echo $profile_viewer_message = "You are viewing someone elses profile.";
echo '<div id="add-friend"><img src="../icons/collection/add.png" alt="Add Friend">' . "Add Friend" . '</div>';
}
?>
<div id="profile-pic-container">
<img id="profile-pic" src="<?php echo (!empty($profPic) && $profPic != 0)? $profPic['img'] : "profile_images/default.jpg"; ?>" alt="<?php echo (!empty($profPic) && $profPic != 0)? "Profile Picture" : "No Picture"; ?>" />
<img src="../icons/photo-camera.png" id="change-picture" alt="Profile Picture">
<form action="" method="POST" enctype="multipart/form-data">
<input type="file" id="upload-profile-pic" name="file" class="file-input">
<div id="profile-pic-change"><a href="" id="upload-link">Change profile pic</a></div>
</div>
<!-- <img width="300px" height="200px" class="none" id="file" src="#" alt="your image">
<input type="submit" class="none" name="create" value="Upload Profile Picture">
</form> -->
<div id="new-profile-pic-preview">
<div id="pic-preview-container"><img class="none pic-preview total-center" id="file" src="#" alt="your image"></div>
<input type="submit" class="none" name="create" value="Upload Profile Picture">
</form>
<a class="popup-close" data-popup-close="popup-1" href="#">Close</a>
</div>
<!-- <form action="" method="POST" enctype="multipart/form-data">
<input type="file" id="upload-profile-pic" name="file" class="file-input">
<img width="300px" height="200px" class="none" id="file" src="#" alt="your image">
<input type="submit" class="none" name="create" value="Upload Profile Picture">
</form> -->
<form action="profile.php" method="POST">
<div class="field">
<label for="streetline1">First Name</label>
<input type="text" class="inputbar" name="streetline1" value="<?php echo escape($user->data()->firstname); ?>">
</div>
<div class="field">
<label for="streetline2">Last Name</label>
<input type="text" class="inputbar" name="streetline2" value="<?php echo escape($user->data()->lastname); ?>">
</div>
<div class="field">
<label for="city">Email</label>
<input type="text" class="inputbar" name="city" value="<?php echo escape($user->data()->email); ?>">
</div>
<div class="field">
<label for="state">Phone</label>
<input type="text" class="inputbar" name="state" value="<?php echo escape($user->data()->phone); ?>">
</div>
<div class="field">
<label for="zipcode">Phone Network</label>
<input type="text" class="inputbar" name="zipcode" value="<?php echo escape($user->data()->network); ?>">
</div>
<div class="field">
<label for="zipcode">Birthday</label>
<input type="text" class="inputbar" name="zipcode" value="<?php echo escape($user->data()->birthday); ?>">
</div>
<label for="submit">
<input id="signinButton" name="submit" type="submit" value="Submit">
</label>
</form>
</div>
</body>
</html>
Session類
class Session {
public static function exists($name) {
return (isset($_SESSION[$name])) ? true : false;
}
public static function put($name, $value) {
return $_SESSION[$name] = $value;
}
public static function get($name) {
return $_SESSION[$name];
}
public static function delete($name) {
if(self::exists($name)) {
unset($_SESSION[$name]);
}
}
public static function flash($name, $string = '') {
if(self::exists($name)) {
$session = self::get($name);
self::delete($name);
return $session;
} else {
self::put($name, $string);
}
}
}
不在第二個文件中啓動會話？爲什麼在第二個文件中覆蓋它？顯示完整的代碼。 – JOUM
我正在兩個文件中啓動會話。除此之外的任何其他代碼都是不必要的。那麼，我不需要在第二個文件中調用它？ – Paul
文件2 - 也許'$ profile_viewer = $ _SESSION ['viewer'];' – AbraCadaver