将mysql转换为mysqli函数并获取参数错误

Question

I'm new to mysqli and am upgrading all my code to use it.

I understand functions now need to have the $conn variable included with them.

Here is my code:

$query = "SELECT * FROM...";
$result = mysqli_query ($conn, $query);
while ($row = mysqli_fetch_array($conn, $result)) {
}

I'm getting the error:

PHP Warning: mysqli_fetch_array() expects parameter 1 to be mysqli_result

and I can't figure out what I'm missing.

Answer 1

and I can't figure out what I'm missing.

Missing? Nothing. Extra? :)

mysqli_fetch_array will take $result , which already knows about $conn ; so mysqli_fetch_array($result) is correct, and adding $conn confuses it.