请问这种跳转页面怎么写？ - 全球主机交流论坛

<?
$url=$_GET["u"];
if (strlen($url >=3)){
header("Location:"."http://".$url);
}
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>正在执行跳转</title>
<style>
body {
margin: 0;
padding: 0;
background: #E6EAEB;
font-family: Arial, '微软雅黑', '宋体', sans-serif
}
.alert-box {
display: none;
position: relative;
margin: 96px auto 0;
padding: 180px 85px 22px;
border-radius: 10px 10px 0 0;
background: #FFF;
box-shadow: 5px 9px 17px rgba(102,102,102,0.75);
width: 286px;
color: #FFF;
text-align: center
}
.alert-box p {
margin: 0
}
.alert-circle {
position: absolute;
top: -50px;
left: 111px
}
.alert-sec-circle {
stroke-dashoffset: 0;
stroke-dasharray: 735;
transition: stroke-dashoffset 1s linear
}
.alert-sec-text {
position: absolute;
top: 11px;
left: 190px;
width: 76px;
color: #000;
font-size: 68px
}
.alert-sec-unit {
font-size: 34px
}
.alert-body {
margin: 35px 0
}
.alert-head {
color: #242424;
font-size: 28px
}
.alert-concent {
margin: 25px 0 14px;
color: #7B7B7B;
font-size: 18px
}
.alert-concent p {
line-height: 27px
}
.alert-btn {
display: block;
border-radius: 10px;
background-color: #4AB0F7;
height: 55px;
line-height: 55px;
width: 286px;
color: #FFF;
font-size: 20px;
text-decoration: none;
letter-spacing: 2px
}
.alert-btn:hover {
background-color: #6BC2FF
}
.alert-footer {
margin: 0 auto;
height: 42px;
width: 160px
}
.alert-footer-icon {
float: left
}
.alert-footer-text {
float: left;
border-left: 2px solid #EEE;
padding: 3px 0 0 5px;
height: 5px;
color: #0B85CC;
font-size: 12px;
text-align: left
}
.alert-footer-text p {
color: #7A7A7A;
font-size: 22px;
line-height: 18px
}
</style>
</head>
<body class="ie8">
<div id="js-alert-box" class="alert-box"> <svg class="alert-circle" width="234" height="234">
<circle cx="117" cy="117" r="108" fill="#FFF" stroke="#43AEFA" stroke-width="17"></circle>
<circle id="js-sec-circle" class="alert-sec-circle" cx="117" cy="117" r="108" fill="transparent" stroke="#F4F1F1" stroke-width="18" transform="rotate(-90 117 117)"></circle>
<text class="alert-sec-unit" x="82" y="172" fill="#BDBDBD">secs</text>
</svg>
<div class="alert-body">
<div id="js-alert-head" class="alert-head"></div>
<div class="alert-concent">
<p>正在跳转到指定的分享页面</p>
<p>感谢您访问瑞虎中国</p>
</div>
<div id="js-sec-text" class="alert-sec-text"></div>
<a id="js-alert-btn" class="alert-btn" href="<? echo $url;?>">立即跳转</a> </div>
<div class="alert-footer clearfix"> <svg width="46px" height="42px" class="alert-footer-icon">
<circle fill-rule="evenodd" clip-rule="evenodd" fill="#7B7B7B" stroke="#DEDFE0" stroke-width="2" stroke-miterlimit="5" cx="21.917" cy="21.25" r="17"/>
<path fill="#FFF" d="M22.907,27.83h-1.98l0.3-2.92c-0.37-0.22-0.61-0.63-0.61-1.1c0-0.71,0.58-1.29,1.3-1.29s1.3,0.58,1.3,1.29 c0,0.47-0.24,0.88-0.61,1.1L22.907,27.83z M18.327,17.51c0-1.98,1.61-3.59,3.59-3.59s3.59,1.61,3.59,3.59v2.59h-7.18V17.51z M27.687,20.1v-2.59c0-3.18-2.59-5.76-5.77-5.76s-5.76,2.58-5.76,5.76v2.59h-1.24v10.65h14V20.1H27.687z"/>
<circle fill-rule="evenodd" clip-rule="evenodd" fill="#FEFEFE" cx="35.417" cy="10.75" r="6.5"/>
<polygon fill="#7B7B7B" stroke="#7B7B7B" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="5" points="35.417,12.16 32.797,9.03 31.917,10.07 35.417,14.25 42.917,5.29 42.037,4.25 "/>
</svg>
<div class="alert-footer-text">
<p>Cisoar.Inc</p>
思硕安全检查</div>
</div>
</div>
<script>
function alertSet(e) {
document.getElementById("js-alert-box").style.display = "block",
document.getElementById("js-alert-head").innerHTML = e;
var t = 2,
n = document.getElementById("js-sec-circle");
document.getElementById("js-sec-text").innerHTML = t,
setInterval(function() {
if (0 == t){
location.href="<? echo $url;?>";
}else {
t -= 1,
document.getElementById("js-sec-text").innerHTML = t;
var e = Math.round(t / 5 * 735);
n.style.strokeDashoffset = e - 735
}
},
970);
}
</script>
<script src="tongji.js" type="text/javascript"></script>
<script>alertSet('来自瑞虎中国');</script>
</body>
</html>

复制代码