php - 解析错误 : Syntax error, SQL 查询出现意外的 T_String 问题

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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 />

这是相应的 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

Answer 1

您忘记将字符串括在引号中:

$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");