當我從 PHP 腳本發送此 SQL 時，我收到 SQL 語法錯誤，但是，如果我從 phpMyAdmin 運行它，它會按我預期的方式工作。SQL：DELIMITER $    CREATE TRIGGER update_listing_count    AFTER UPDATE ON `items`    FOR EACH ROW BEGIN        UPDATE `listings` SET units = (SELECT COUNT(*) FROM `items` WHERE listingid = NEW.listingid) WHERE id = NEW.listingid;        UPDATE `listings` SET unitsSold = (SELECT COUNT(*) FROM `items` WHERE listingid = NEW.listingid AND sold = true) WHERE id = NEW.listingid;    END$    DELIMITER ;PHP：$conn = DBConnection();    $stmt = $conn->prepare("DELIMITER $    CREATE TRIGGER update_listing_count    AFTER UPDATE ON `items`    FOR EACH ROW BEGIN        UPDATE `listings` SET units = (SELECT COUNT(*) FROM `items` WHERE listingid = NEW.listingid) WHERE id = NEW.listingid;        UPDATE `listings` SET unitsSold = (SELECT COUNT(*) FROM `items` WHERE listingid = NEW.listingid AND sold = true) WHERE id = NEW.listingid;    END$    DELIMITER ;");    $stmt->execute();錯誤：致命錯誤：未捕獲的 PDOException：SQLSTATE[42000]：語法錯誤或訪問沖突：1064 您的 SQL 語法有錯誤；檢查與您的 MySQL 服務器版本相對應的手冊，了解在itemsC:\xampp\htdocs\marketplace.php:25 中第 1 行的“DELIMITER $ CREATE TRIGGER update_listing_count AFTER UPDATE ON”附近使用的正確語法：#0 C: \xampp\htdocs\marketplace.php(25): PDOStatement->execute() #1 {main} 在第 25 行的 C:\xampp\htdocs\marketplace.php 中拋出