在PHP错误中更新限制语句

Question

$query1 = "update rooms set available='1' where typeId='$typeId' order by roomId limit='$room'"; 

我接近＆＃39; =＆＃39; 1＆＃39;＆＃39;附近的语法错误但我无法找到错误。我很确定它的写得正确。

Answer 1

LIMIT无法分配值，删除引号。将其更改为：

$query1 = "update rooms set available='1' where typeId='$typeId' order by roomId limit $room";

Answer 2

在sql限制中无法分配，你不能使用限制数周围的引号，所以使用此

 $query1 = "update rooms set available = '1' where typeId = '$typeId' order by roomId limit $room ";

不要使用'$room'

Answer 3

只需将您的查询更改为：

$query1 = "update `rooms` set available='1' where typeId='$typeId' order by roomId limit '$room'";