在while循環中查詢

Question

我有這個查詢電話：

$currplayer = 1;

$query = "SELECT f.fk_user_id2, u.username, u.profileimg FROM ".$prefix."_friends f 
                        INNER JOIN ".$prefix."_users u
                            ON f.fk_user_id2 = u.id     
                    WHERE f.fk_user_id1 = $currplayer ORDER BY u.username ASC";

if ($result = $mysqli->query($query)){
    while ($row1 = $result->fetch_assoc()){

        $friendid = $row1['fk_user_id2'];

        $sql = $mysqli->query("SELECT * FROM ".$prefix."_newversus WHERE fk_player=$currplayer AND fk_opponent=$friendid");
        $row = $sql->fetch_assoc();

我試圖弄清楚如何在循環內將查詢帶入帶有內部聯接的第一個查詢中，但無法解決。

希望獲得幫助並提前表示感謝:-)

Answer 1

如果我正確地找到了您，則想刪除循環運行的查詢並將其添加到主查詢中。

嘗試這個：

SELECT f.fk_user_id2, u.username, u.profileimg FROM ".$prefix."_friends f 
INNER JOIN ".$prefix."_users u ON f.fk_user_id2 = u.id 
INNER JOIN ".$prefix."_newversus n ON f.fk_user_id2 = n.fk_opponent 
WHERE f.fk_user_id1 = $currplayer AND
n.fk_player=$currplayer
ORDER BY u.username ASC;