所以,这是我的代码:
<?php
//Connect to the database
include("config.php");
//Query the database and get the count
$result = mysql_query("SELECT * FROM ads");
$num_rows = mysql_num_rows($result);
?>
我怎样才能使它每隔几秒钟查询一次数据库的计数?
单独保存您的 PHP 脚本(在我的示例中位于 thescript.php 下方)
<?php
//Connect to the database
include("config.php");
//Query the database and get the count
$q = mysql_query("SELECT count(*) as num FROM ads");
$count = mysql_fetch_result($q,0,'num');
echo $count;
?>
然后在 home.php 文件中使用 AJAX/javascript/jQuery:
<script>
$(function(){
function loadNum()
{
$('h1.countdown').load('thescript.php');
setTimeout(loadNum, 5000); // makes it reload every 5 sec
}
loadNum(); // start the process...
});
</script>