警告:mysqli_close()恰好需要1个参数，其中0个给定 [英] Warning: mysqli_close() expects exactly 1 parameter, 0 given in

问题描述

我一直收到下面列出的以下错误，我想知道如何纠正此错误.

I keep getting the following error listed below and I was wondering how do I correct this error.

Warning: mysqli_close() expects exactly 1 parameter, 0 given in

这是下面列出的代码.

<?php
require_once ('./mysqli_connect.php'); // Connect to the db.

function make_list ($parent) {

    global $tasks;

    echo '<ol>';

    foreach ($parent as $task_id => $todo) {

        echo "<li>$todo";

        if (isset($tasks[$task_id])) { 

            make_list($tasks[$task_id]);

        }

        echo '</li>';

    } // End of FOREACH loop.

    // Close the ordered list:
    echo '</ol>';

} // End of make_list() function.

    $mysqli = new mysqli("localhost", "root", "", "sitename");
    $dbc = mysqli_query($mysqli,"SELECT task_id, parent_id, task FROM tasks WHERE date_completed='0000-00-00 00:00:00' ORDER BY parent_id, date_added ASC");
if (!$dbc) {
    // There was an error...do something about it here...
    print mysqli_error();
} 

$tasks = array();

while (list($task_id, $parent_id, $task) = mysqli_fetch_array($dbc, MYSQLI_NUM)) {

    // Add to the array:
    $tasks[$parent_id][$task_id] =  $task;

}

make_list($tasks[0]);


mysqli_close(); // close the connection

// Include the html footer
include('./includes/footer.html');
?>

推荐答案

错误消息很明显:您调用了mysqli_close，没有任何参数，而函数需要一个参数.

The error message is clear : you called mysqli_close without any argument, while the function expects one.

根据mysqli_close文档，必须提供mysqli链接作为其参数.

According to mysqli_close documentation, you must provide the mysqli link as its argument.

这篇关于警告:mysqli_close()恰好需要1个参数，其中0个给定的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！