date("Y-m-d H:i:s", $t)

<!--在网页的头部加入以下内容,实际应用根据你的需要相应修改下便可-->
<link rel="stylesheet" type="text/css" href="<?php $hour=date("H");if ($hour<12) echo "images/morning.css"; elseif ($hour<17) echo "images/afternoon.css"; else echo "images/night.css";?>" />

<form action="#" method="get">
user: <input type="text" user="user" />
pass: <input type="text" user="pass" />
<input type="submit" value="登陆" />
</form>
<?php echo "user:".$_GET["user"]."<br/>pass:".$_GET["pass"]; ?>

<script>
var pageUrl="";
pageurl = window.location;
if (pageurl == ("http://btoss.com/")) {indexad ();}
else if (pageurl == ("http://btoss.com/index.php")) {indexad ();}
else if (pageurl == ("http://www.btoss.com/index.php")) {indexad ();}
else if (pageurl == ("http://www.btoss.com/")) {indexad ();}
else {document.writeln('<script type=\"text\/javascript\" src=\"\/js\/468.js\"><\/script>');}
function indexad() {document.writeln('<script type=\"text\/javascript\" src=\"\/js\/468A.js\"><\/script>');}
</script>

ipconfig /displaydns

ipconfig /flushdns

<input id="addr_more1" size="35" name="addr_more1" url="true">
<input id="addr_more2" size="35" name="addr_more2" url="true">
<input id="addr_more3" size="35" name="addr_more3" url="true">
<input id="addr_more4" size="35" name="addr_more4" url="true">

<IfModule mod_deflate.c>
<FilesMatch "\.(js|css)$"> #js|css为你指定的文件后缀
SetOutputFilter DEFLATE
</FilesMatch>
</IfModule>