Question

I have this code

if(!array_key_exists('key1', $_POST)){
    $_POST['key1'] = null;
}
if(!array_key_exists('key_x', $_POST)){
    $_POST['key_x'] = null;
}
if(!array_key_exists('key_polar_8', $_POST)){
    $_POST['key_polar_8'] = null;
}
if(!array_key_exists('nilak', $_POST)){
    $_POST['nilak'] = null;
}

is it a better or shorter way to write this?

Answer 1

You could put the field names in an array, then use a loop.

$keys = array('key1', 'key_x', 'key_polar_8', 'nilak');
foreach($keys as $k){
    if(!array_key_exists($k, $_POST)){
       $_POST[$k] = null;
    }
}