解析错误：语法错误，SQL 查询的意外 T_String 问题 [关闭]答案

【问题标题】：Parse error: Syntax error, unexpected T_String issue with SQL query [closed]解析错误：语法错误，SQL 查询的意外 T_String 问题 [关闭]
【发布时间】：2014-02-16 14:52:49
【问题描述】：

我收到此错误：

<br />
<b>Parse error</b>:  syntax error, unexpected 'listings' (T_STRING) in 
<b>C:\xampp\htdocs\android_connect\get_venues.php</b> on line 
<b>30</b>
<br />

下面是对应的 PHP 行：

$result = mysql_query(SELECT * FROM listings WHERE Venue_ID IN (SELECT Venue_ID FROM venues WHERE Venue_Name = $VenueName AND Region = $Region) AND Event_ID IN (SELECT Event_ID FROM events WHERE Event_Name = $VenueName AND Category = $Category);

谁能找出我哪里出错了？

提前致谢

【问题讨论】：

您在此处缺少引号：Event_Name = $VenueName AND Category = $Category.
你有一个 SQL 注入漏洞。

标签： php sql syntax-error parse-error

【解决方案1】：

你忘了把你的字符串用引号括起来：

$result = mysql_query("SELECT * FROM listings WHERE Venue_ID IN (SELECT Venue_ID FROM venues WHERE Venue_Name = $VenueName AND Region = $Region) AND Event_ID IN (SELECT Event_ID FROM events WHERE Event_Name = $VenueName AND Category = $Category");

【讨论】：

哈哈，我是个白痴，谢谢 :)