Online PHP editor | output for IDdYD

@ 2017-03-13T12:31:32Z

<?php

$array = array(
    0 => array (0 => null, 1=> 'something1'),
    1 => array (0 => null, 1=> null, 2 => 'something2', 3 => array(0 => null, 1 => 'f')),
    2 => null
);


function filterNulls($array, &$list = []) {
    array_walk($array, function ($value, $key) use (&$list) {
        if (!is_array($value)) {
            if (!empty($value)) {
                $list[$key] = $value;
            }
        } else {
            $list[$key] = filterNulls($value);
        }
    });
    
    return $list;
}

print_r(filterNulls($array));

Output for 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 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 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0 - 8.5.1: Array ( [0] => Array ( [1] => something1 ) [1] => Array ( [2] => something2 [3] => Array ( [1] => f ) ) )
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