3v4l.org

run code in 300+ PHP versions simultaneously

@ 2019-02-27T20:42:09Z

<?php
$lists = array(array(
    array(
        'id' => 1,
        'parent' => 0,
        'name' => 'Menu 1',
    ),
    array(
        'id' => 2,
        'parent' => 1,
        'name' => 'Menu 2',
    ),
    array(
        'id' => 3,
        'parent' => 2,
        'name' => 'Menu 3',
    ),
    array(
        'id' => 4,
        'parent' => 1,
        'name' => 'Menu 4',
    ),
    array(
        'id' => 5,
        'parent' => 0,
        'name' => 'Menu 5',
    )
));
function make_list($lists, $parent = 0) {
    $children = array_filter($lists[0], function ($v) use($parent) { return $v['parent'] == $parent; });
    if (!count($children)) return;
    echo "<ul>\n";
    foreach ($children as $child) {
        echo "<li>{$child['name']}</li>\n";
        make_list($lists, $child['id']);
    }
    echo "</ul>\n";
}

make_list($lists);

Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 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 - 8.3.4, 8.3.6: <ul> <li>Menu 1</li> <ul> <li>Menu 2</li> <ul> <li>Menu 3</li> </ul> <li>Menu 4</li> </ul> <li>Menu 5</li> </ul>
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 <ul> <li>Menu 1</li> <ul> <li>Menu 2</li> <ul> <li>Menu 3</li> </ul> <li>Menu 4</li> </ul> <li>Menu 5</li> </ul>

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197.94 ms | 402 KiB | 225 Q