Online PHP editor | output for Zh6Ws

@ 2019-02-01T18:07:29Z

<?php
function cartesian($input) {
    $result = array();

    while (list($key, $values) = each($input)) {

        if (empty($values)) {
            continue;
        }
        if (empty($result)) {
            foreach($values as $value) {
                $result[] = array($key => $value);
            }
        }
        else {

            $append = array();

            foreach($result as &$product) {

                $product[$key] = array_shift($values);
                $copy = $product;
                foreach($values as $item) {
                    $copy[$key] = $item;
                    $append[] = $copy;
                }
                array_unshift($values, $product[$key]);
            }
            $result = array_merge($result, $append);
        }
    }

    return $result;
}

$data = array
(
    'machineAttribute' => array
    (
        'TTT 1000 S',
        'TTT 1100 S'
    ),

    'technicalAttribute' => array
    (
        'Certificate',
        'Software'
    ),

    'languageAttribute' => array
    (
        'English',
        'Spanish',
    )

);

$combos = cartesian($data);
$final_result = [];
foreach($combos as $combo){
    $final_result[] = implode('/',$combo);
}
print_r($final_result);

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12: Fatal error: Uncaught Error: Call to undefined function each() in /in/Zh6Ws:5 Stack trace: #0 /in/Zh6Ws(58): cartesian(Array) #1 {main} thrown in /in/Zh6Ws on line 5
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33: Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /in/Zh6Ws on line 5 Array ( [0] => TTT 1000 S/Certificate/English [1] => TTT 1100 S/Certificate/English [2] => TTT 1000 S/Software/English [3] => TTT 1100 S/Software/English [4] => TTT 1000 S/Certificate/Spanish [5] => TTT 1100 S/Certificate/Spanish [6] => TTT 1000 S/Software/Spanish [7] => TTT 1100 S/Software/Spanish )
Output for 7.1.25, 7.3.32 - 7.3.33: Array ( [0] => TTT 1000 S/Certificate/English [1] => TTT 1100 S/Certificate/English [2] => TTT 1000 S/Software/English [3] => TTT 1100 S/Software/English [4] => TTT 1000 S/Certificate/Spanish [5] => TTT 1100 S/Certificate/Spanish [6] => TTT 1000 S/Software/Spanish [7] => TTT 1100 S/Software/Spanish )

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