Online PHP editor | output for cqYa2

@ 2013-07-31T17:59:36Z

<?php
// Everything you enter here will be executed by our servers. Try it!

$data = array(

array(
	'id' => 1,
    'name' => 'bob',
    'product_id' => 1,
    'product' => 'laptop',
    'price' => 999,
),

    array(
	'id' => 1,
    'name' => 'bob',
    'product_id' => 2,
    'product' => 'mouse',
    'price' => 15,
),
    array(
	'id' => 1,
    'name' => 'bob',
    'product_id' => 3,
    'product' => 'keyboard',
    'price' => 25,
)
);

$output = array();

        $userColumnIntersect = array_flip(array(
            'id',
            'name',
        ));

        $productColumnIntersect = array_flip(array(
            'product',
            'price',
        ));
        foreach($data as $row){

            $id = $row['id'];

            if(!isset($output[$id])){
                $output[$id] = array_intersect_key($row, $userColumnIntersect);
                $output[$id]['products'] = array();
            }

            $productId = $row['product_id'];

            if(!isset($output[$id]['products'][$productId])){
                $productDataRow = array_intersect_key($row, $productColumnIntersect);
                $output[$id]['products'][$productId] = $productDataRow;
            }
        }


        echo '<pre>';
        print_r($output);

Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.36, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: <pre>Array ( [1] => Array ( [id] => 1 [name] => bob [products] => Array ( [1] => Array ( [product] => laptop [price] => 999 ) [2] => Array ( [product] => mouse [price] => 15 ) [3] => Array ( [product] => keyboard [price] => 25 ) ) ) )
Output for 5.0.0 - 5.0.5: Fatal error: Call to undefined function array_intersect_key() in /in/cqYa2 on line 46
Process exited with code 255.
Output for 4.4.5 - 4.4.9: Fatal error: Call to undefined function: array_intersect_key() in /in/cqYa2 on line 46
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4: Fatal error: Call to undefined function: array_intersect_key() in /in/cqYa2 on line 46
Process exited with code 255.
Output for 4.3.0 - 4.3.1: Fatal error: Call to undefined function: array_intersect_key() in /in/cqYa2 on line 46

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