Online PHP editor | output for cGtoi

@ 2020-11-02T11:45:58Z

<?php

$arr = [
    'lvl1-A' => [
        'lvl2' => [
            'lvl3' => 'done'
        ],
    ],
    'lvl1-B' => 'done',
];

function traverse( \Traversable $it ): void {
    while ( $it->valid() ) {
        $it->hasChildren() 
            ? print "{$it->key()} => \n" and traverse( $it->getChildren() ) 
            : print "{$it->key()} => {$it->current()}\n";
        $it->next();
    }
}

$it = new \RecursiveArrayIterator( $arr );
$it->rewind();
traverse( $it );
print 'Done.';

Output for 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 - 8.1.33, 8.2.0 - 8.2.30, 8.3.0 - 8.3.29, 8.4.1 - 8.4.14, 8.4.16, 8.5.0 - 8.5.1: lvl1-A => lvl2 => lvl3 => done lvl1-B => done Done.
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

preferences:dark modelive previewkey bindings