[英]PHP PDO: Stored Procedure Return Empty Result
我試圖使用PDO調用SP(存儲過程)。
try {
// Connecting using the PDO object.
$conn = new PDO("mysql:host=$host; dbname=$dbname", $user, $password);
$stmt = $conn->prepare('CALL sp_user(?,?,@user_id,@product_id)');
$stmt->execute(array("demouser", "demoproduct"));
$result = $stmt->fetchAll();
print_r($result);
}
// Catching it if something went wrong.
catch(PDOException $e) {
echo "Error : ".$e->getMessage();
}
SP成功執行並將數據插入相關表中,並假設返回新插入的id。 但是當我打印結果時,我得到一個空數組。
有什么建議嗎?
以下是我正在使用的SP:
DELIMITER $$
DROP PROCEDURE IF EXISTS `test`.`sp_user`$$
CREATE PROCEDURE `sp_user`(
IN user_name VARCHAR(255),
IN product_name VARCHAR(255),
OUT user_id INT(11),
OUT product_id INT(11)
)
BEGIN
START TRANSACTION;
INSERT INTO `user` (`name`) VALUES(user_name);
SET user_id := LAST_INSERT_ID();
INSERT INTO `product` (`name`) VALUES(product_name);
SET product_id := LAST_INSERT_ID();
INSERT INTO `map_user_product` (`user_id`,`product_id`) VALUES(user_id,product_id);
commit;
END$$
DELIMITER ;
編輯:永遠不會。
我想通過使用$ result變量,我將能夠獲取OUT變量的值。 但后來我發現我需要使用另一個SQL查詢來獲取那些輸出變量。
$stmt = $conn->query("SELECT @user_id,@product_id");
嘗試這個...
try
{
// Connecting using the PDO object.
$conn = new PDO("mysql:host=$host; dbname=$dbname", $user, $password);
$stmt = $conn->prepare('CALL sp_user(:demouser, :demoproduct, @user_id, @product_id)');
$demouser = "demouser";
$demoproduct = "demoproduct";
$stmt->bindParam(":demouser", $demouser, PDO::PARAM_STR, 255);
$stmt->bindParam(":demoproduct", $demoproduct, PDO::PARAM_STR, 255);
$stmt->execute();
$result = $conn->query("select @user_id, @product_id;")->fetchAll();
print_r($result);
foreach($result as $row)
{
echo $row["@user_id"];
echo $row["@product_id"];
}
}
// Catching it if something went wrong.
catch(PDOException $e)
{
echo "Error : ".$e->getMessage();
}
您可以使用以下命令獲取最后插入的ID: PDO::lastInsertId();
我想你現在從fetchAll
返回數組,我認為不包括id: http : //php.net/manual/en/pdostatement.fetchall.php
嘗試這個
DELIMITER $$
DROP PROCEDURE IF EXISTS `test`.`sp_user`$$
CREATE PROCEDURE `sp_user`(
IN user_name VARCHAR(255),
IN product_name VARCHAR(255)
)
BEGIN
START TRANSACTION;
INSERT INTO `user` (`name`) VALUES(user_name);
SET user_id := LAST_INSERT_ID();
INSERT INTO `product` (`name`) VALUES(product_name);
SET product_id := LAST_INSERT_ID();
INSERT INTO `map_user_product` (`user_id`,`product_id`) VALUES(user_id,product_id);
commit;
SELECT user_id, product_id;
END$$
DELIMITER ;
用PHP
$result = $conn->query("CALL sp_user(demouser, demoproduct)")->fetchAll();
var_dump($result);
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.