我不能让我的mysqli查询同时工作。如果我在html中注释掉一个函数,那么另一个函数将正确执行,反之亦然。
function all_posts() {
require_once 'database.inc.php';
$mysqli = mysqli_connect($host, $username, $password, $database);
$query = mysqli_query($mysqli, "SELECT variable_name, post_name, post_date, post_display FROM blog_posts ORDER BY id DESC LIMIT 5");
if (!$query)
echo mysqli_error();
while ($results = mysqli_fetch_assoc($query)) {
$post_name = $results['post_name'];
$post_date = $results['post_date'];
$post_display = $results['post_display'];
$variable_name = $results['variable_name'];
echo "<a href='posts.php?post={$variable_name}'>";
echo "<div class='entry'>";
echo "<div class='entry_header'>";
echo "<h2>{$post_name}</h2>";
echo "<h3>{$post_date}</h3>";
echo "</div>";
echo "<p>{$post_display}</p>";
echo "</div>";
echo "</a>";
}
mysqli_free_result();
}
function all_sidebar_posts() {
require_once 'database.inc.php';
$mysqli = mysqli_connect($host, $username, $password, $database);
$query = mysqli_query($mysqli, "SELECT variable_name, post_name FROM blog_posts ORDER BY id DESC LIMIT 5");
while ($results = mysqli_fetch_assoc($query)) {
$post_name = $results['post_name'];
$variable_name = $results['variable_name'];
echo "<li><a href='posts.php?post=$variable_name'>$post_name</a></li>";
}
mysqli_free_result();
}
这是我要输出到的HTML。
<ul>
<?php all_sidebar_posts(); ?>
</ul>
</div>
<div class="content_container">
<?php all_posts(); ?>
</div>
我试过使用
mysqli_data_seek();
但没有运气。也许我没用对吧?我浏览了许多问题,发现了类似的问题,但我都试过了,但都没有用。我是编程新手,所以我可能忽略了一些基本的东西。谢谢大家的帮助! 最佳答案
你做错了。
不要将数据操作代码与表示代码混合使用。
首先创建一个函数来获取帖子:
function get_posts() {
global $mysqli;
$sql = "SELECT variable_name, post_name, post_date, post_display
FROM blog_posts ORDER BY id DESC LIMIT 5"
$result = mysqli_query($mysqli, $sql);
if (!$result) trigger_error(mysqli_error()."[$sql]");
$date = array();
while ($row = mysqli_fetch_assoc($result)) {
$data[] = $row;
}
}
这样说吧
require_once 'database.inc.php';
$mysqli = mysqli_connect($host, $username, $password, $database);
$data = get_posts();
然后使用这个数组显示
关于php - Mysqli查询两次无效,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/14657385/