mysqli返回受影响行数

Posted 2020-10-30 jiafeng

参考链接：http://php.net/manual/en/mysqli.affected-rows.php

/* update rows */
$mysqli->query("UPDATE Language SET Status=1 WHERE Percentage > 50");
printf("Affected rows (UPDATE): %d\n", $mysqli->affected_rows);

 

注意，一下写法是错误的：

        $query="insert into eventtable (projectid,classname,object,username)values(2,‘config‘,‘A.0.0,1‘,‘王五‘)";
        $result=$mysqli->query($query);//此时，$result 是bool值
        echo $result->affected_rows;//错误