如何获得受PHP中MySQL查询影响的行？

Question

从PHP，如果我使用mysqli_stmt_execute执行以下查询：

UPDATE users 
SET hair_color = 'brown' 
WHERE height > 180;

如何确定表中的哪些行实际上已更新并受到查询的影响？

请注意，我希望仅在PHP中解决此问题，而不使用DB触发器等。特别是，出现此问题是因为我们正试图从数据库中删除所有触发器。

Answer 1

$string="UPDATE users SET hair_color = 'brown' WHERE height > 180";
//Update Query String which will perform in update query

$update_query=mysqli_query($connection,$string);
//by this we are actually running our update queries.    

$total_affected_rows=mysqli_affected_rows($con); 
//By this line you will get total affected rows

//if you need to select and show all the affected rows then you can make a 
//query

$sql=mysqli_query($con,"SELECT * FROM users WHERE height > 180");

Answer 2

您可以使用mysqli_stmt_affected_rows()获取受影响的行

在这里检查http://php.net/manual/en/mysqli-stmt.affected-rows.php