致命错误：在 php 中调用未定义函数 fetch_assoc()

Question

我收到一个错误“致命错误：调用未定义的函数 fetch_assoc()”。你能告诉我应该如何进行吗？

代码如下

$servername = "localhost";

$username = "s";

$password = "j";

$conn = new mysqli($servername, $username, $password);


if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
} 

echo "Connected successfully";

$sql = "select idnew_table, new_tablecol from new_schema.new_table;";

$result = $conn->query($sql);

$r = count($result);


if ($result['num_rows'] != 10) {


    while($row = $result[fetch_assoc()]){
        echo "id: " . $row["idnew_table"]. " - Name: " .             $row["new_tablecol"];
        }

} else {
    echo "0 results";
}

$conn->close();

Answer 1

这一行：

while($row = $result[fetch_assoc()]){

应该是：

while($row = $result -> fetch_assoc()){