MySQL查詢錯誤

Question

我有一個錯誤這句話：

 
... 

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

錯誤：

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

我做錯了什麼？

Answer 1

評估"$maxprice"給出一個空字符串，可能是因爲變量$maxprice它沒有被定義。這可能是一個錯字，或者你忘記爲這個變量設置一個值。

Answer 2

檢查您的$ maxprice變量 - 它似乎是空的。