这在PHP中是什么意思,什么时候使用它？
=>
另一个例子.
foreach ($parent as $task_id => $todo)
我一直收到下面列出的以下错误,我想知道如何更正此错误.
Warning: mysqli_close() expects exactly 1 parameter, 0 given in
这是下面列出的代码.
<?php
require_once ('./mysqli_connect.php'); // Connect to the db.
function make_list ($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' …如何将下面的代码中的PHP函数转换为非函数.
<?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>';
}
// Close the ordered list:
echo '</ol>';
}
$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();
} …