Question

I can’t seem to figure out how to loop a variable check. What I am trying to do is something like checking those two variables but in a loop

if(isset($_GET['action'])){
    $action = $_GET['action'];
}
else{
    $action = NULL;
}

if(isset($check)){
    $check = $check;
}
else{
    $check = NULL;
}

I want to do something like this or more effiecient if possible

$variables = array($_GET['action'], $check);
$define = array($action, $check);

foreach($variables as $variable){
 if(isset($variable){
   $variable = $define;
 }
}

I want it to show no errors while I have error_reporting(E_ALL) open
Could someone help me with this?

Answer 1

Your first line will lead to warnings if the variables are not set:

$variables = array($_GET['action'], $check);    // here you are possibly using unset variables

If you want to write it a bit shorter, you could use the ternary operator but that’s about it:

$action = isset($_GET['action']) ? $_GET['action'] : NULL;
$check = isset($check) ? $check : NULL;

I don’t think there is any more efficient way to check a combination of normal variables and super globals in one sweep.