MySQL查询错误

Question

我有一个错误这句话：

 
... 

WHERE title LIKE '%$title%' OR text LIKE '%$title%' 
AND (price BETWEEN $minprice AND $maxprice) 
AND catid = $catid ORDER BY id DESC 
 

错误：

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'AND) AND cat' at line 34

我做错了什么？

Answer 1

评估"$maxprice"给出一个空字符串，可能是因为变量$maxprice它没有被定义。这可能是一个错字，或者你忘记为这个变量设置一个值。

Answer 2

检查您的$ maxprice变量 - 它似乎是空的。