如何允许仅在初始页面加载时或在请求时存在时设置会话变量？

Question

I want to define only once, on the page load, the session variable $SESSION_estatus. Then I want to update it ONLY when a request variable is passed on the URL. Currently if the $_REQUEST['estatus'] variable is not present, it is updating the $SESSION_estatus back to all. In other words, I am trying to maintain the state of the selection of $SESSION_estatus when it is not being passed on the URL. I hope that makes more sense.

My code

if(! isset($SESSION_estatus) ){
       $SESSION_estatus = 'all';    
}

if(isset($_REQUEST['estatus'])){
       $SESSION_estatus = $_REQUEST['estatus'];
}

thank you.

Answer 1

The session variable is $_SESSION, I hope that helps you

if(!isset($_SESSION['estatus']) ){
   $_SESSION['estatus'] = 'all';    
}

if(isset($_REQUEST['estatus'])){
   $_SESSION['estatus'] = $_REQUEST['estatus'];
}