平成30/ 2018-10-22 00:49
php/ array_reverse
[ 配列要素を逆にする ]

foreach($DB->query($sql) as $row){
    $title = preg_split("/\/\s+/u", $row["title"]);
    $title = array_reverse($title);
}

( Thanks. )
array_reverse
http://php.net/manual/ja/function.array-reverse.php