Remove Item From Session Array

Yii 1.1 General Discussion
1

I’m trying to remove an element for the session array $session[‘the_variable’] like this:

unset($session[‘the_variable’][$index]);

But it doesn’t work, any idea what i’m doing wrong ?

Thanks in advanced!

2

Edit: I see now that you have variable $session, not session itself. unset should do it, are you sure that you are trying to unset the right thing?

3

Yes, I’m sure, here is the whole code, and you’ll see that i’m trying with different methods.




$session = new CHttpSession;

$session->open();


$session = Yii::app()->session;

	

$_id = $_GET['_id'];

$_opt = $_GET['_opt'];

switch ($_opt) {


	case 'delete':


		$index = array_search($_id, $session['the_variable']);


		echo 'key: ' . $index . '<br/>';


		print_r(Yii::app()->session->get('the_variable'));


		echo '<br/>';




		// try to delete with all methods

		if (is_numeric($index)) {

			//print_r($session['the_variable']);


			foreach($_SESSION['the_variable'] as $k => $v) {

				if($v == $removeditem)

					unset($_SESSION['the_variable'][$k]);

			}			




			//Yii::app()->session->remove('the_variable')->$index; /* with this the whole array it's unset */


			unset($session['the_variable'][$index]);

			print_r($session['the_variable']);


			// $session['the_variable'] = array_diff($session['the_variable'], $index);


			echo 'OK <br/>';

		} else {

			echo 'not found';

		}

		

	break;

}
4

RESOLVED:


unset($_SESSION['the_variable'][$index]);

Now, why I must use the global variable $_SESSION and with the $session variable from Yii doesn’t work?

5

CHttpSession methods work on $_SESSION so both solution should working the same. To remove variable from session you can also use remove() method.

6

There is a good article about working with sessions: