mySQL Query无法在PHP中运行,但可以在PHPMyAdmin中运行

Question

当我从PHP MyAdmin运行SQL查询时,它正确地插入行; 当我从PHP运行它时,它没有.

我将为您提供每个文本; 他们是完全相同的,但鉴于我可能错过了一些东西,我不想假设没有差异;

在PHP中:

$orderSend = "SET @typeSQL := (SELECT `typeID` FROM `ArbuckleType` WHERE `typeName` = 'A la Carte');

        SET @groupSQL:= (SELECT `groupID` FROM `ArbuckleGroup` WHERE (`groupName` = 'Nigiri' AND `typeID` = @typeSQL));

        SET @itemSQL:=(SELECT `itemID` FROM `ArbuckleItem` WHERE (`itemName` = 'Salmon' AND `groupID` = @groupSQL));

        INSERT INTO `ArbuckleOrderDetails` VALUES('', '$orderID', @typeSQL,@groupSQL, @itemSQL, '$quantity', '$spicy')";
mysql_query($orderSend);

现在在PHP MyAdmin中:

SET @type := (SELECT `typeID` FROM `ArbuckleType` WHERE `typeName` = 'A la Carte');# MySQL returned an empty result set (i.e. zero rows).  

        SET @group:= (SELECT `groupID` FROM `ArbuckleGroup` WHERE (`groupName` = 'Nigiri' AND `typeID` = @type));# MySQL returned an empty result set (i.e. zero rows).

        SET @item:=(SELECT `itemID` FROM `ArbuckleItem` WHERE (`itemName` = 'Salmon' AND `groupID` = @group));# MySQL returned an empty result set (i.e. zero rows).

INSERT INTO `ArbuckleOrderDetails` VALUES('', '$orderID', @type,@group, @item, '$quantity', '$spicy')

注意:我运行PHP查询没有SET调用(3行设置变量),它工作; 但我无法弄清楚这些行中的语法错误.还运行mysql_error并且它声明存在语法错误 - 然后要求我查看手册.非常有帮助,mysql.

Answer 1

mysql_query()不能一次执行多个查询.

两种解决方案

1. 使用多个mysql_query行
2. 使用mysqli和multi_query()

你的代码,重写为多个mysql_query行:

mysql_query("SET @typeSQL := (SELECT `typeID` FROM `ArbuckleType` WHERE `typeName` = 'A la Carte')");
mysql_query("SET @groupSQL:= (SELECT `groupID` FROM `ArbuckleGroup` WHERE (`groupName` = 'Nigiri' AND `typeID` = @typeSQL))");
mysql_query("SET @itemSQL:=(SELECT `itemID` FROM `ArbuckleItem` WHERE (`itemName` = 'Salmon' AND `groupID` = @groupSQL))");
mysql_query("INSERT INTO `ArbuckleOrderDetails` VALUES('', '$orderID', @typeSQL,@groupSQL, @itemSQL, '$quantity', '$spicy')");