How do check if a PHP session is empty

0 votes

Is there a way to check if its empty or it is not set? I'm actualy doing this:

if (($_SESSION['something'] == '') || (!isset($_SESSION['something'])) {
    echo 'the session is either empty or doesn\'t exist';
}

Does !isset just checks if a $_SESSION[''] exist and doesn't check if, is there are values in the array or not

Nov 9, 2020 in PHP by kartik
• 37,520 points
9,628 views

1 answer to this question.

0 votes

Hii,

I would use isset and empty:

session_start();
if(isset($_SESSION['blah']) && !empty($_SESSION['blah'])) {
   echo 'Set and not empty, and no undefined index error!';
}

array_key_exists is a nice alternative to using isset to check for keys:

session_start();
if(array_key_exists('blah',$_SESSION) && !empty($_SESSION['blah'])) {
    echo 'Set and not empty, and no undefined index error!';
}

Make sure you're calling session_start before reading from or writing to the session array.

Hope it helps!!

answered Nov 9, 2020 by Niroj
• 82,840 points

Related Questions In PHP

0 votes
1 answer

How to check if a string is an email address in PHP?

Hello, Try this without regular expressions: <?php ...READ MORE

answered Nov 3, 2020 in PHP by Niroj
• 82,840 points
3,989 views
0 votes
1 answer

How to check if a string is JSON or not?

Hello @kartik, Use JSON.parse function isJson(str) { ...READ MORE

answered Aug 19, 2020 in PHP by Niroj
• 82,840 points
9,143 views
0 votes
1 answer

How do I check whether a checkbox is checked in jQuery?

Hello @kartik, The checked property of a checkbox DOM element ...READ MORE

answered Aug 28, 2020 in PHP by Niroj
• 82,840 points
940 views
0 votes
1 answer

How to check if the request is an AJAX request with PHP?

Hello @kartik, Try below code snippet if(!empty($_SERVER['HTTP_X_REQUESTED_WITH']) ...READ MORE

answered Oct 29, 2020 in PHP by Niroj
• 82,840 points
12,839 views
+1 vote
1 answer

How to make anchor tag with routing using Laravel?

Hey @kartik, First you have to go to ...READ MORE

answered Mar 18, 2020 in Laravel by Niroj
• 82,840 points
23,068 views
0 votes
1 answer

What is redirection in Laravel?

Named route is used to give specific ...READ MORE

answered Mar 18, 2020 in Laravel by Niroj
• 82,840 points
3,015 views
0 votes
1 answer

How to install Laravel via composer?

Hello, This is simple you just need to ...READ MORE

answered Mar 23, 2020 in Laravel by Niroj
• 82,840 points
2,944 views
+1 vote
1 answer

What are named routes in Laravel and How can specify route names for controller actions?

Hey @kartik, Named routing is another amazing feature of ...READ MORE

answered Mar 23, 2020 in Laravel by Niroj
• 82,840 points
44,867 views
0 votes
1 answer

How can I use PHP to check if a directory is empty?

Hello @kartik, It seems that you need scandir instead of ...READ MORE

answered Nov 10, 2020 in PHP by Niroj
• 82,840 points
9,743 views
0 votes
1 answer

How to check if php session is already started or not?

Hello kartik, Use session_id(), it returns an empty string ...READ MORE

answered Apr 1, 2020 in PHP by Niroj
• 82,840 points
5,745 views
webinar REGISTER FOR FREE WEBINAR X
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP