删除帖子preg_replace上的所需条目

Question

如何以？

的形式获得带有正则表达式的查询

$data = "select * from table where id=5 AND ( round(data) = 2 ) AND ( round(data) = 5 ) AND FIND_IN_SET('159',data)";
$data = preg_replace("/AND ( round(data) = \d+ )/", "", $data);
$data = preg_replace("/AND FIND_IN_SET('\d+',data)/", "", $data);

输出：

select * from table where id=5

Answer 1

以下是您的代码的工作版本：

$data = "select * from table where id=5 AND ( round(data) = 2 ) AND ( round(data) = 5 ) AND FIND_IN_SET('159',data)";
$data = preg_replace("/AND \( round\(data\) = \d+ \)/", "", $data);
$data = preg_replace("/AND FIND_IN_SET\('\d+',data\)/", "", $data);

由于您忘记在\和(之前放置)，因此无法正常工作。来自PHP文档：http://php.net/manual/en/function.preg-replace.php

PHP将(和)视为blocks进行匹配。