set socet timeout php code example

Example 1: file_get_contents timeout

$ctx = stream_context_create(array('http'=>
    array(
        'timeout' => 1200,  //1200 Seconds is 20 Minutes
    )
));

echo file_get_contents('http://example.com/', false, $ctx);

Example 2: php expire a session

//Ending a php session after 30 minutes of inactivity
$minutesBeforeSessionExpire=30;
if (isset($_SESSION['LAST_ACTIVITY']) && (time() - $_SESSION['LAST_ACTIVITY'] > ($minutesBeforeSessionExpire*60))) {
    session_unset();     // unset $_SESSION   
    session_destroy();   // destroy session data  
}
$_SESSION['LAST_ACTIVITY'] = time(); // update last activity