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session - Why is PHP session_destroy() not working?

I tried to destroy all session variable by using the session_destroy() method, but after using this method, the values are not destroyed.

Why is session_destroy() not working?

Is there any other way to destroy the session in PHP?

if (isset($_SESSION['LAST_ACTIVITY']) && (time() - $_SESSION['LAST_ACTIVITY'] > 1800)) 
{   
    session_destroy();   
    session_unset();     
}
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Perhaps is way too late to respond but, make sure your session is initialized before destroying it.

session_start() ;
session_destroy() ;

i.e. you cannot destroy a session in logout.php if you initialized your session in index.php. You must start the session in logout.php before destroying it.


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