您好我想每隔3秒刷新一次我的PHP这就是我所拥有的:
<?php
session_start();
include "../config.php";
$time = time();
$sql1 = "UPDATE login SET lastlogin = '" .$time. "' WHERE id = '" .$_SESSION['userid']. "'";
$res1 = mysql_query($sql1) or die(mysql_error());
$onlinetime = "10"; // 10 seconds
$sql3 = "SELECT * FROM login ORDER BY lastlogin DESC";
$res3 = mysql_query($sql3);
while($row3 = mysql_fetch_array($res3)){
if($row3['lastlogin'] + $onlinetime > time()){
echo '<b><font color="green">✔</font></b> <u>'.$row3['name'].'</u><br />';
}else{
echo "<b><font color='red'>X</font></b> <u>".$row3['name']."</u><br />";
}
}
?>
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这不令人耳目一新,这真的很刺激.它显示谁在我的聊天室在线.有人帮忙吗?谢谢.
我建议<meta http-equiv="refresh" content="5" />在本<head>节中使用标签.这不依赖于JavaScript,并且每个主要浏览器都实现了此功能.