Online PHP editor | refs for OuDSC

@ 2018-07-25T17:06:07Z
<?php

        $data = [ 
            'c' => [
                [
                    'q' => 1,
                ],
                [
                    'q' => 2,
                ],
                [
                    'q' => 3,
                ],
            ]
        ];
        $before = $data;
        foreach ($data['c'] as &$c) {
        }
        $after = $data;
        var_dump($before === $after);
        
        foreach ($data['c'] as $c) {
        }
        $after = $data;
        
        var_dump($before === $after);