Question

SO to the rescue!

Say I have these arrays:

<?php

$arr_1 = array([0] => 'setup');
$arr_2 = array([0] => 'artwork', [1] => 'path');
$arr_3 = array([0] => 'artwork', [1] => 'color');

$container = array(
    'progress' => array(
         'setup' => 'complete',
         'artwork' => array(
              'path' => 'complete',
              'color'=> '',
         )
    )
);

?>

What I want to do is check the $container to see if the value or values from the given arrays are empty, basically giving the effect of:

if(empty($container['progress'][*first value of given array*][*if exists, second value of given array*])){...}

What is the best way to achieve said goal?

Answer 1

Something like this:

function array_key_empty($array, $keys) {
    foreach($keys as $key) {
        if(!array_key_exists($key, $array)) {
            return true;
        }
        else {
           $array = $array[$key]; 
        }
    }
    return empty($array);
}

I assume you also want to get true if the keys don’t exist.