Online PHP editor | refs for M7nOE

<?php $array = [ 2 => 'first=1', 3 => 'second=2', 4 => 'third=', 5 => 'first=4', 9 => 'second=3', ]; $result = []; foreach ($array as $string) { [$key, $value] = explode('=', $string, 2); if (!isset($entry) || isset($entry[$key])) { unset($entry); $result[] = &$entry; } $entry[$key] = $value; } var_export($result);