我需要从this page中提取信息。该页面有两个选项卡，产品和说明。产品是默认页面。当我想查看该选项卡的内容时，我可以单击描述。
我使用get_file_contents（$ url）获取页面内容，下面是页面内容
<!DOCTYPE html>
<html lang="en">
<head>
<title>Best Online Shopping Mall</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<meta name="apple-mob ile-web-app-title" content="KiKUU">
<meta name="renderer" content="webkit" />
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
<meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no">
<!-- UC UC -->
<meta name="full-screen" content="yes" />
<meta name="browsermode" content="application" />
<!-- QQ QQ -->
<meta name="x5-fullscreen" content="true" />
<meta name="x5-page-mode" content="app" />
<meta name="format-detection" content="telephone=no, address=no">
<script>
!function(e){function t(){var t=n.clientWidth,r="}";!navigator.userAgent.match(/Android|BlackBerry|iPhone|iPad|iPod|Opera Mini|IEMobile/i)&&t>1024&&(t=414,r=";max-width:"+t+"px;margin-right:auto!important;margin-left:auto!important;}"),e.rem=t/10,/ZTE U930_TD/.test(navigator.userAgent)&&(e.rem=1.13*e.rem),/M351 /.test(navigator.userAgent)&&(e.rem=e.rem/1.05),i.innerHTML="html{font-size:"+e.rem+"px!important;}body{font-size:"+12*(t/320)+"px"+r;var newFt=getComputedStyle(window.document.documentElement)['font-size'].replace('px','');if(newFt!==e.rem+''){var scale = e.rem/newFt; var newRem=e.rem*scale;i.innerHTML="html{font-size:"+newRem+"px!important;}body{font-size:"+12*(t*scale/320)+"px"+r}}{var n=document.documentElement,i=document.createElement("style");n.clientWidth}n.firstElementChild.appendChild(i),e.addEventListener("resize",function(){t()},!1),e.addEventListener("pageshow",function(e){e.persisted&&t()},!1),t()}(window);
</script>
<link rel="shortcut icon" type="image/png" href="http://7xlmt4.com5.z0.glb.clouddn.com/app-icon.png">
<link rel="stylesheet" href="/styles/css/chaos.css">
<link rel="stylesheet" href="http://images-global.kikuu.com/msite-static-javascript-min-dropload.min.css">
<link rel="stylesheet" href="http://images-global.kikuu.com/msite-static-javascript-min-swiper.min.css">
</head>
<body>
<div class="kikuu_ad">
<div class="kikuu_ad__title"></div>
</div>
<div style="position: relative;">
<header>
<div id="productTop" class="ki-header">
<a href="javascript:window.history.back();" class="top__back">
<img src="/image/icon_back@3x.png" alt="" class="top__back-img">
</a>
<a href="/" class="top__home">
<img src="/image/tabbar_Home_icon.png" alt="" class="top__home-img">
</a>
<div class="top__sel">
<div class="top__sel-chil top__sel-active">
<span>Product</span>
</div>
<div class="top__sel-chil top__sel-right">
<span>Description</span>
</div>
</div>
</div>
</header>
<div class="page">
<div id="productPage">
<!-- -->
<div class="swiper-container">
<div class="swiper-wrapper">
<div class="swiper-slide">
<div class="img-box">
<img src="http://images-global.kikuu.com/upload-productImg-17095586497266793_320_234.jpg?" alt="" class="swiper-slide-img">
</div>
</div>
<div class="swiper-slide">
<div class="img-box">
<img src="http://images-global.kikuu.com/upload-productImg-17095587845932003_320_234.jpg?" alt="" class="swper-slide-img">
</div>
</div>
<div class="swiper-slide">
<div class="img-box">
<img src="http://images-global.kikuu.com/upload-productImg-17095589225692464_320_234.jpg?" alt="" class="swper-slide-img">
</div>
</div>
<div class="swiper-slide">
<div class="img-box">
<img src="http://images-global.kikuu.com/upload-productImg-17095590582994055_320_234.jpg?" alt="" class="swper-slide-img">
</div>
</div>
<div class="swiper-slide">
<div class="img-box">
<img src="http://images-global.kikuu.com/upload-productImg-17095591998516725_320_234.jpg?" alt="" class="swper-slide-img">
</div>
</div>
</div>
<div style="font-size: 0;" class="swiper-pagination swiper-pagination-product"></div>
<div class="swiper-button-prev"></div>
<div class="swiper-button-next"></div>
</div>
<div class="goods-info">
<div class="goods-info__icon">
<!--<img src="/image/icon_share.png" alt="" class="icon_wish">-->
<div alt="" class="icon_share uncollect " data-collect="collect"></div>
</div>
<div class="goods-info__title">178 orders</div>
<div class="goods-info__subtitle">Summer Autumn Hot Selling Women Tight A-line party Dress Solid color Full Sleeve O-Neck Lady Sexy Dress Vestido S M L XL</div>
<div class="goods-info__price">8,400 TZS</div>
<div class="goods-info__once">
<span class="once-count"></span>
</div>
<div class="goods-info__buy">Buy Now</div>
<form id="checkout" method="post" action="/checkout">
<input type="hidden" name="skuId" class="checkout-sku" />
<input type="hidden" name="quantity" class="checkout-quantity" />
</form>
</div>
<div class="goods-help" id="shippingInfo">
<div class="goods-help-title">Estimated time of arrival: </div>
<div class="goods-help-sub">11th Dec-21st Dec</div>
</div>
<div class="goods-help" id="service">
<div class="goods-help-title">Service Commitment(2)</div>
<div class="goods-help-content ki-flex">
<div class="goods-help-content__sel ki-flex">
<div class="help__sel-item">
<img src="https://qiniu.kikuu.com/icon_exfee_480.png" alt="" class="item-pic">
<span class="item-title">Shipping Fee</span>
</div>
<div class="help__sel-item">
<img src="https://qiniu.kikuu.com/icon_seven_480.png" alt="" class="item-pic">
<span class="item-title">7 Days Free Returns</span>
</div>
</div>
</div>
</div>
<div class="goods-store goods-section">
<a href="/store/2621">
<img src="http://images-global.kikuu.com/upload-productImg-1509759697054.jpeg" alt="" class="store-pic">
<div class="store-content">
<p class="content-title">Famous Clothing Shop</p>
<ul class="attr__list ki-flex">
<li class="attr__item">173 Goods</li>
<li class="attr__item">33 New</li>
<li class="attr__item">792 Followers</li>
</ul>
<div class="store-more">
<span class="more-title">View Store</span>
<img src="/image/big_more.png" alt="" class="more-pic">
</div>
</div>
</a>
</div>
<!--
<div class="goods-comment goods-section">
<div class="comment-box pub-box">
<a href="/comment/712305">
<div class="section-box ki-flex">
<img src="/image/icon_comment.png" alt="" class="icon_pub">
<span class="section-word">Comments (0)</span>
<img src="/image/big_more.png" alt="" class="icon_more">
</div>
</a>
</div>
<div class="review-box pub-box">
<a href="/product/reviews/712305">
<div class="section-box ki-flex">
<img src="/image/icon_reviws.png" alt="" class="icon_pub">
<span class="section-word">Reviews (0)</span>
<img src="/image/big_more.png" alt="" class="icon_more">
</div>
<div class="horizontal">
<ul class="horizontal__list">
<li class="horizontal__item">
<img src="https://gw.alicdn.com/bao/uploaded/TB1XmtdQpXXXXXfapXXSutbFXXX.jpg_350x350q70" alt="" class="horizontal__item-img">
</li>
</ul>
</div>
</a>
</div>
<div class="ques-box pub-box">
<div class="section-box ki-flex">
<img src="/image/icon_questions_black.png" alt="" class="icon_pub">
<span class="section-word">Questions about the product (8)</span>
<img src="/image/big_more.png" alt="" class="icon_more">
</div>
</div>
</div>
-->
<div class="footer-box">
<div class="footer__title">
You May Also Like
</div>
<ul class="footer__list clearfix" id="might">
</ul>
<div class="footer__btn">
<a href="/product/712305/related" style="display: block;width: 100%;height: 100%;">View All</a>
</div>
</div>
</div>
<div id="productDesc" style="display: none;"></div>
<div class="service-mask ki-mask" style="display: none;" id="service-mask">
<div class="service-mask-wrapper">
<div class="service-mask-wrapper-title">Service Commitment</div>
<div class="service-mask-wrapper-content">
<ul class="service-mask-content__list">
<li class="service-mask-content__item">
<img src="https://qiniu.kikuu.com/icon_exfee_480.png" alt="" class="item-img">
<h4 class="item-title">Shipping Fee</h4>
<p class="item-desc">Extra freight will be charged when ordering the product.</p>
</li>
<li class="service-mask-content__item">
<img src="https://qiniu.kikuu.com/icon_seven_480.png" alt="" class="item-img">
<h4 class="item-title">7 Days Free Returns</h4>
<p class="item-desc">If you are unsatisfied with this product,you may return it within 7 days of delivery for a full refund.</p>
</li>
</ul>
</div>
<div class="service-mask-wrapper-footer">Done</div>
</div>
</div>
<div class="shipping-mask ki-mask" id="shipping-mask" style="display: none;">
<div class="shipping-mask-wrapper">
<div class="shipping-mask-wrapper-title">Logistic(Info)</div>
<div class="shipping-mask-wrapper-btn"></div>
<div class="shipping-mask-wrapper-content">
<ul class="shipping-mask-wrapper-content__list">
<li class="shipping-mask-wrapper-content__item ki-flex">
<span class="left">Available Destinations</span>
<span class="right">Tanzania</span>
</li>
<li class="shipping-mask-wrapper-content__item ki-flex">
<span class="left">Shipping from</span>
<span class="right">China</span>
</li>
<li class="shipping-mask-wrapper-content__item ki-flex">
<span class="left">Estimated time of arrival: </span>
<span class="right">11th Dec-21st Dec</span>
</li>
</ul>
</div>
</div>
</div>
</div>
<footer>
</footer>
</div>
</body>
<script type="text/javascript" src="http://images-global.kikuu.com/msite-static-javascript-min-zepto.min.js"></script>
<script type="text/javascript" src="http://images-global.kikuu.com/msite-static-javascript-min-handlebars.min.js"></script>
<script type="text/javascript" src="/javascripts/chaos.js"></script>
<script type="text/javascript" src="/javascripts/common/baseUtil.js"></script>
<script type="text/javascript" src="http://images-global.kikuu.com/msite-static-javascript-min-dropload.min.js"></script>
<script type="text/javascript" src="http://images-global.kikuu.com/msite-static-javascript-min-lazyload.min.js"></script>
<script type="text/javascript" src="/javascripts/common/urlUtil.js"></script>
<script type="text/javascript" src="/javascripts/common/rocketsBtn.js" async></script>
<script>
/* sensor track */
(function(para){var p=para.sdk_url,n=para.name,w=window,d=document,s="script",x=null,y=null;w["sensorsDataAnalytic201505"]=n;w[n]=w[n]||function(a){return function(){(w[n]._q=w[n]._q||[]).push([a,arguments])}};var ifs=["track","quick","register","registerPage","registerOnce","registerSession","registerSessionOnce","trackSignup","trackAbtest","setProfile","setOnceProfile","appendProfile","incrementProfile","deleteProfile","unsetProfile","identify","login","logout"];for(var i=0;i<ifs.length;i++){w[n][ifs[i]]=w[n].call(null,ifs[i])}if(!w[n]._t){x=d.createElement(s),y=d.getElementsByTagName(s)[0];x.async=1;x.src=p;y.parentNode.insertBefore(x,y);w[n].para=para}})({sdk_url:"https://qiniu.kikuu.com/sensorsdata.min.js",name:"kikuu_sa",server_url:"http://sensors.kikuu.com:8006/sa"});
kikuu_sa.logout();
kikuu_sa.register({'platformType': 'msite'});
kikuu_sa.quick('autoTrack');
</script>
<script type="text/javascript" src="http://images-global.kikuu.com/msite-static-javascript-min-swiper.min.js"></script>
<script type="text/javascript" src="/javascripts/common/zepto-toast.js"></script>
<script type="text/javascript" src="/javascripts/common/sku.js"></script>
<script type="text/javascript" src="/javascripts/common/downloadAppPlugin.js" async></script>
<script>
var $buyBtn = $('.goods-info__buy');
var checkoutForm = $('#checkout');
var mySwiper = new Swiper ('.swiper-container', {
loop: true,
prevButton:'.swiper-button-prev',
nextButton:'.swiper-button-next',
//
pagination: '.swiper-pagination',
})
getMightLikeProductList();
function getMightLikeProductList() {
$.ajax({
url: '/product/712305/related',
type: 'GET',
data: {
page: 1,
pagesize: 20
},
timeout: 10000,
dataType: 'json',
success: function(data){
if(data.obj&&data.obj.length > 0) {
$('#might').append($(createMightLikeList(data.obj)))
}
},
error: function(){
}
})
}
function createMightLikeList(data){
//6
var _html = '';
for(var i = 0; i < 6; i++) {
_html += '<li class="footer__item"><a href="/product/'+ data[i].id +'?productDetailSource=Recommend"><img src="'+ data[i].productImg0 +'" alt="" class="footer__item-pic"><div class="footer__item-price">' + toThousands(data[i].lowestPrice) + data[i].unitShow + '</div></a></li>';
}
return _html;
}
$buyBtn.click(function(){
if (true) {
$.sku.show({
productId: '712305',
choose: function(skuId, quantity) {
checkoutForm.find('.checkout-sku').val(skuId);
checkoutForm.find('.checkout-quantity').val(quantity);
$.toast.showLoading();
checkoutForm.submit();
}
});
}
})
$('.icon_share').on('click', function(e){
e.stopPropagation();
e.preventDefault();
var _this = $(this), _collect = _this.data('collect');
var reqUrl = '/product/712305/' + _collect;
$.ajax({
type: 'GET',
dataType: 'json',
url: reqUrl,
data: {
currentUserId: '',
countryId: '2',
code: '',
collectId: ''
},
success: function(res){
if(res.success){
if(_this.hasClass('collect')) {
_this.data('collect', 'collect');
_this.removeClass('collect');
} else {
_this.data('collect', 'uncollect');
_this.addClass('collect');
}
}
else if(res.needLogin) {
var currentUrl = window.location.href;
setCookie('redirect', currentUrl, 3, '/');
window.location.href = '/login'
}
}
})
})
function setCookie(n, p, l, q, o) {
var r = n + "=" + escape(p);
if (l != "") {
var m = new Date();
m.setTime(m.getTime() + l * 3600 * 1000);
r += ";expires=" + m.toGMTString()
}
if (q) {
r += ";path=" + q
}
if (o) {
r += ";domain=" + o
}
document.cookie = r
}
$('#service').on('click', function(){
$('#service-mask').fadeIn()
})
$('#service-mask').on('click', function(e){
e.preventDefault();
e.stopPropagation();
if($(e.target).hasClass('service-mask') || $(e.target).hasClass('service-mask-wrapper-footer')) {
$('#service-mask').fadeOut()
}
})
$('#shippingInfo').on('click', function(){
$('#shipping-mask').fadeIn()
})
$('#shipping-mask').on('click', function(e){
e.preventDefault();
e.stopPropagation();
if($(e.target).hasClass('shipping-mask') || $(e.target).hasClass('shipping-mask-wrapper-btn')) {
$('#shipping-mask').fadeOut()
}
})
var $topSel = $('.top__sel-chil'),
firstAjax = true,
$productDesc = $('#productDesc'),
productDescUrl = true,
$productPage = $('#productPage');
$topSel.click(function() {
if (!$(this).hasClass('top__sel-active')) {
$(this).addClass('top__sel-active').siblings('.top__sel-active').removeClass('top__sel-active');
} else {
return;
}
if ($(this).hasClass('top__sel-right')) {
if (firstAjax && productDescUrl) {
firstAjax = false;
$.ajax({
url: 'http://images-global.kikuu.com/ProductDetailToQiniu-17132715984761159.html',
success: function(data) {
$productDesc.append($(data))
},
error: function(err) {
},
complete: function() {
$productPage.hide();
$productDesc.show();
}
})
} else {
$productPage.hide();
$productDesc.show();
}
} else {
$productDesc.hide();
$productPage.show();
}
})
function toThousands(num) {
var result = '', counter = 0;
num = (num || 0).toString();
for (var i = num.length - 1; i >= 0; i--) {
counter++;
result = num.charAt(i) + result;
if (!(counter % 3) && i != 0) { result = ',' + result; }
}
return result;
}
</script>
<script>
kikuu_sa.track('PRODUCT_DETAIL', {
'getH5ProductDetail_productId' : '712305',
'getH5ProductDetail_productName' : 'Summer Autumn Hot Selling Women Tight A-line party Dress Solid color Full Sleeve O-Neck Lady Sexy Dress Vestido S M L XL',
'getH5ProductDetail_storeName' : 'Famous Clothing Shop',
'getH5ProductDetail_productRawPrice' : '18720',
'getH5ProductDetail_productPrice' : '8400',
'getH5ProductDetail_priceUnit' : '1'
});
</script>
<script>
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-99241612-1', 'auto');
ga('send', 'pageview');
</script>
</html>
如您所见，“描述”选项卡属于类top__sel-right
以下javascript代码在“描述”选项卡上触发点击时运行
if ($(this).hasClass('top__sel-right')) {
if (firstAjax && productDescUrl) {
firstAjax = false;
$.ajax({
url: 'http://images-global.kikuu.com/ProductDetailToQiniu-17132715984761159.html',
success: function(data) {
$productDesc.append($(data))
},
error: function(err) {
},
complete: function() {
$productPage.hide();
$productDesc.show();
}
})
} else {
$productPage.hide();
$productDesc.show();
}
} else {
$productDesc.hide();
$productPage.show();
}
我需要提取“描述”选项卡上提供的信息，请详细说明我如何以编程方式提取描述信息。