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run code in 300+ PHP versions simultaneously

@ 2018-10-15T12:29:05Z

<?php
function recurse(&$array, $pid = null) {
    foreach ($array as $id => $item) {
        if (isset($item->params->data->menu_display_special) && $item->params->data->menu_display_special == 1) { 
            unset($array[$id]);
            recurse($array, $item->id);
        } elseif ($item->parent_id === $pid) {
            unset($array[$id]);
        }
    }
}    

$list = [
    35 => (object)[
        'id' => '2375',
        'params' => (object)[ 
            'data' => (object)[
                'menu_display_special' => '1'
            ]
        ],
        'parent_id' => '2376',
        'parent' => false
    ],
    36 => (object)[
        'id' => '2377',
        'params' => (object)[ 
            'data' => (object)[
                'menu_display_special' => '1'
            ]
        ],
        'parent_id' => '2376',
        'parent' => false
    ],
    37 => (object)[
        'id' => '2379',
        'params' => (object)[ 
            'data' => (object)[
                'menu_display_special' => '1'
            ]
        ],
        'parent_id' => '2377',
        'parent' => false
    ],
    38 => (object)[
        'id' => '2380',
        'params' => (object)[ 
            'data' => (object)[
                'menu_display_special' => '1'
            ]
        ],
        'parent_id' => '2377',
        'parent' => false
    ],
    39 => (object)[
        'id' => '2381',
        'params' => (object)[ 
            'data' => (object)[]
        ],
        'parent_id' => '2377',
        'parent' => false
    ],
    40 => (object)[
        'id' => '2378',
        'params' => (object)[ 
            'data' => (object)[]
        ],
        'parent_id' => '2376',
        'parent' => false
    ],
];

recurse($list);
var_export($list);

Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13: array ( 40 => (object) array( 'id' => '2378', 'params' => (object) array( 'data' => (object) array( ), ), 'parent_id' => '2376', 'parent' => false, ), )
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33: array ( 40 => stdClass::__set_state(array( 'id' => '2378', 'params' => stdClass::__set_state(array( 'data' => stdClass::__set_state(array( )), )), 'parent_id' => '2376', 'parent' => false, )), )
Output for 5.6.38: array ( 39 => stdClass::__set_state(array( 'id' => '2381', 'params' => stdClass::__set_state(array( 'data' => stdClass::__set_state(array( )), )), 'parent_id' => '2377', 'parent' => false, )), 40 => stdClass::__set_state(array( 'id' => '2378', 'params' => stdClass::__set_state(array( 'data' => stdClass::__set_state(array( )), )), 'parent_id' => '2376', 'parent' => false, )), )

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