Online PHP editor | output for sfqeq

<?php $args = [ 'a' => [ 'zebra' => 1, ], 'b' => [ 'zebra' => 0, ], 'c' => [ 'zebra' => 1, ], 'd' => [ 'zebra' => 1, ], 'e' => [ 'zebra' => 1, ], ]; $args0 = array_filter($args, function ($arg) { return $arg['zebra'] === 0; }); $args1 = array_filter($args, function ($arg) { return $arg['zebra'] === 1; }); $result = array_merge(...array_map(static function ($arg0Key, $arg1Key) use ($args0, $args1) { if ($arg0Key !== null) { $result[$arg0Key] = $args0[$arg0Key]; } if ($arg1Key !== null) { $result[$arg1Key] = $args1[$arg1Key]; } return $result; }, array_keys($args0), array_keys($args1))); print_r($result);