Unable to get session contents in second function - php

Question

I am having some issues with sessions.
In the first function queue, I save the session entries I can print this out from this function, so I can see its being set correctly.
In the function remove, I try and save this entries session into a variable and I get the error that entries is an undefined index.
Does anyone have any ideas what I am doing wrong here?
function queue()
{
session_start();
$status = 'Awaiting Moderation';
$channel = '1';
// Find all entries in 'Gallery' channel with 'Awaiting Moderation' status
$this->EE->db->select('entry_id')
->from('exp_channel_titles')
->where('status', $status)
->where('channel_id', $channel);
$query = $this->EE->db->get();
$entries = $query->result_array();
$entries_count = count($entries);
// Set count
$_SESSION['entries_count'] = $entries_count;
// If entries found
if ($entries_count > 0)
{
// Flatten entry ids array
$entriesFlat = array();
array_walk_recursive($entries, function($a) use (&$entriesFlat) { $entriesFlat[] = $a; });
$entriesSerial = serialize($entriesFlat);
// Save in session
$_SESSION['entries'] = $entriesSerial;
}
}
function remove()
{
session_start();
// Get session data + save into variable
$entries = $_SESSION['entries'];
}

Answer 1

You can only have one session and it should be at the top of your file.

Answer 2

Since your using codeigniter why not use codeigniter session and then autoload library and then you can do code like below.
$this->session->set_userdata('entries_count', $entries_count);
To Get Data
$this->session->userdata('entries_count');
And
$this->session->set_userdata('entries', $entriesSerial);
To Get Data
$this->session->userdata('entries');
// Example
if ($this->session->userdata('entries') > 0)
{
User Guide
CI2 http://www.codeigniter.com/userguide2/libraries/sessions.html
CI3: http://www.codeigniter.com/user_guide/libraries/sessions.html
http://www.codeigniter.com/docs

Answer 3

1st of all, there's not need to declare 'session' again at 'remove()' function..
2ndly to set session contents you have to write :
$this->session->set_userdata('entries_count', $entries_count);
Instead of
$_SESSION['entries'] = $entriesSerial;
Save it in session
To get session contents you've to write:
$entries_count = $this->session->userdata('entries_count');
Get session data + save into variable
Then you can write the condition like:
if ($entries_count > 0) {
}
Similarly, you've to write
$this->session->set_userdata('entries', $entriesSerial);
To save in session instead of
$_SESSION['entries'] = $entriesSerial;
And
$entries = $this->session->userdata('entries');
To Get session data + save into variable