PHP更新查询语法错误

Question

任何人都可以告诉我为什么这不起作用，并返回语法错误吗？

$sql4 = "update apiStreetCheckGeneral 
         set (BBAverageSpeed, BBSuperFastBBAvailable, BBCommentary)
             values ('$averagespeed', '$superfast', '$bbcommentary') 
         where PostCode='".$values['PostCode']."'";
CustomQuery($sql4);

Answer 1

这是您的查询：

update apiStreetCheckGeneral set (BBAverageSpeed, BBSuperFastBBAvailable, BBCommentary)
     values ('$averagespeed', '$superfast', '$bbcommentary')
     where PostCode='".$values['PostCode'].

我不知道使用列列表或update的{​​{1}}语法。单独设置每个：

values

但是，您应该了解如何为update apiStreetCheckGeneral set BBAverageSpeed = '$averagespeed', BBSuperFastBBAvailable = '$superfast', BBCommentary = '$bbcommentary' where PostCode='".$values['PostCode']."'" 语句使用参数化查询，尤其是。

Answer 2

使用如下查询

$sql4 = "update apiStreetCheckGeneral 
         set BBAverageSpeed = '$averagespeed', 
          BBSuperFastBBAvailable = '$superfast', 
          BBCommentary = '$bbcommentary'
          where PostCode='".$values['PostCode']."' ";
CustomQuery($sql4);