Learning PHP has been quite a journey for me, especially when it comes to working with SESSIONS.
I recently started using the Instagram API and managed to successfully authorize an app, redirecting to a page to display content.
Organized in my main folder named Monkey, there's a subfolder called Instagram.
The callback URL for Instagram is success.php located in the Instagram folder. After retrieving an access token from Instagram, it redirects to the index file in the Monkey folder.
While on the success page, I create an array filled with data called instaArray. My goal is to pass this array from success.php in the Instagram folder to index.php in the Monkey folder.
Using a simple header redirect like:
header( 'Location: ../index.php' );
I was under the impression that setting up sessions would be straightforward, but I seem to have missed something crucial.
In success.php, once the array is built, I initiate a session as follows:
session_start();
$_SESSION['instagram'] = $instaArray;
My expectation was for this code to establish a session storing my InstaArray. Moving on to index.php in the Monkey folder:
<?php
session_start();
$get_instagram = $_SESSION['instagram'];
print_r($get_instagram);
?>
Unfortunately, nothing seems to occur upon executing these lines of code. Even attempting to set the session 'instagram' to a simplistic numerical value like 1 ($_SESSION['instagram'] = 1;) results in no output on the index page.
Am I making a glaring mistake somewhere along the way? Despite reading up on sessions, the concept remains somewhat elusive due to its newness.
Any assistance provided is greatly appreciated, and I hope I've articulated everything adequately.
EDIT: Complete script of my success.php page below
<?php
require 'src/db.php';
require 'src/instagram.class.php';
require 'src/instagram.config.php';
// Receive OAuth code parameter
$code = $_GET['code'];
// Check whether the user has granted access
if (true === isset($code)) {
// Receive OAuth token object
$data = $instagram->getOAuthToken($code);
// Take a look at the API response
$username = $data->user->username;
$fullname = $data->user->full_name;
$id = $data->user->id;
$token = $data->access_token;
$user_id = mysql_query("select instagram_id from users where instagram_id='$id'");
if(mysql_num_rows($user_id) == 0) {
mysql_query("insert into users(instagram_username,instagram_name,instagram_id,instagram_access_token) values('$username','$fullname','$id','$token')");
}
//Set Cookie
$Month = 2592000 + time();
setcookie(instagram, $id, $Month);
// Set user access token
$instagram->setAccessToken($token);
// Retrieve Data
$instaData = $instagram->getUserFeed();
// Create Instagram Array
$instaArray = array();
$count = 0;
// For each Instagram Post
foreach ($instaData->data as $post) {
$instaArray[$count]['post_id'] = $post->id;
$instaArray[$count]['name'] = $post->user->username;
$instaArray[$count]['profile_img'] = $post->user->profile-picture;
$instaArray[$count]['img_url'] = $post->images->standard_resolution->url;
$instaArray[$count]['caption'] = $post->caption->text;
$instaArray[$count]['like_count'] = $post->likes->count;
$instaArray[$count]['comment_count'] = $post->comments->count;
$instaArray[$count]['created_time'] = $post->created_time; //Unix Format
$count++;
}
// Start Session For Array
session_start();
$_SESSION['instagram'] = serialize($instaArray);
header( 'Location: ../index.php' ) ;
} else {
// Check whether an error occurred
if (true === isset($_GET['error'])) {
echo 'An error occurred: '.$_GET['error_description'];
}
}
?>