源代码是：
{var%20f='http://v.t.sina.com.cn/share/share.php?appkey=1515056452',u=z||d.location,p=['&url=',e(u),'&title=',e(t||d.title),'&source=',e(r),'&sourceUrl=',e(l),'&content=',c||'gb2312','&pic=',e(p||'')].join('');function%20a(){if(!window.open([f,p].join(''),'mb',['toolbar=0,status=0,resizable=1,width=440,height=430,left=',(s.width-440)/2,',top=',(s.height-430)/2].join('')))u.href=[f,p].join('');};if(/Firefox/.test(navigator.userAgent))setTimeout(a,0);else%20a();})(screen,document,encodeURIComponent,'','','https://wenda.whatsns.com/data/attach/logo/logo.png', '推荐 Urgyfbj不要靠近我FVu 的问题《php采集问题，遇到代码中的多个空格和换行怎么处理？》','https://wenda.whatsns.com/q-300564.html','页面编码gb2312|utf-8默认gb2312'));){kind=link}
<a class="figure figure-180236 " data-qidanadd-albumid="543438400" data-qidanadd-episode="0" data-qidanadd-channelid="1" data-qidanadd-tvid="543438400" data-qidanadd-vip="0" data-widget-qidanadd="qidanadd" data-widget-block="block" data-block-type="qs1404043" data-searchpingback-elem="link" data-searchpingback-param="ptype=1-1" href="http://www.iqiyi.com/v_19rr9g9wks.html?fc=87451bff3f7d2f4a#vfrm=2-3-0-1" data-playsrc-linktype="play" data-playsrc-elem="pic" data-pb="rtgt=iqiyi&p2=9000" target="_blank">采集php代码是：
preg_match("#<a class="figure figure-180236 " data-qidanadd-albumid="543438400" data-qidanadd-episode="0" data-qidanadd-channelid="1" data-qidanadd-tvid="543438400" data-qidanadd-vip="0" data-widget-qidanadd="qidanadd" data-widget-block="block" data-block-type="qs1404043" data-searchpingback-elem="link" data-searchpingback-param="ptype=1-1" href="(.*?)" data-playsrc-linktype="play" data-playsrc-elem="pic" data-pb="rtgt=iqiyi&p2=9000" target="_blank">#",$content,$array);但是这样的话采集不到信息？求解
付费偷看金额在0.1-10元之间
请好好学习一下PHP的正则表达式模式，其中有一个m是指多行匹配可以满足你的需求，http://php.net/manual/en/refe...。
建议html解析使用DiDom
类似于jquery的dom选择
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