PHP正则获取HTML里需要的数据

1、使用的函数：

preg_match()匹配单个
preg_match_all()匹配所有

2、代码：

/*** @todo 正则获取HTML中想要的数据
*/
public function regexAction(){//$text=file_get_contents('http://www.***.***/');$text = $this->getHtml();//preg_match_all('# <a\b[^>]*\bdata-code=([^\s>]+)[^>]*>[\s\S]*?([^<>]*)</a>#i', $text, $match);  //匹配 [data-code=] 里面的内容，包括""preg_match_all('# <a\b[^>]*\bdata-code="([^\s>]+)"[^>]*>[\s\S]*?([^<>]*)</a>#i', $text, $match); //匹配 [data-code=""] 括号里面的内容preg_match_all('#<span>([^<]*)</span>#',$text,$match1);  //匹配span标签里面的内容preg_match_all ('/<a href=\"(.*?)\".*?>(.*?)<\/a>/i',$text,$match2);    //匹配所有的a标签echo '<pre>';print_r($match);print_r($match1);print_r($match2);echo '</pre>';die;
}function getHtml(){$html = '<a href="">A标签1哦</a>'.'<a href="">A标签2哦</a>'.'<a href="">A标签3哦</a>'.'<dl class="dl-bg"><dt>A</dt><dd><a href="https://www.kuaidi100.com/all/axd.shtml" id="a-anxindakuaixi" data-code="anxindakuaixi"><span>安信达</span></a><a href="https://www.kuaidi100.com/all/auspost.shtml" id="a-auspost" data-code="auspost" style="width:110px;"><span>澳大利亚邮政</span></a></dd></dl><dl><dt>B</dt><dd><a href="https://www.kuaidi100.com/all/htky.shtml" id="a-huitongkuaidi2" data-code="huitongkuaidi"><span>百世快递</span></a><a href="https://www.kuaidi100.com/all/yzgn.shtml" id="a-youzhengguonei2" data-code="youzhengguonei"><span>包裹平邮</span></a><a href="https://www.kuaidi100.com/all/bangsongwuliu.shtml" id="a-bangsongwuliu" data-code="bangsongwuliu"><span>邦送物流</span></a></dd></dl><dl class="dl-bg"><dt>D</dt><dd><a href="https://www.kuaidi100.com/all/dhl.shtml" id="a-dhl" data-code="dhl"><span>DHL快递</span></a><a href="https://www.kuaidi100.com/all/dtwl.shtml" id="a-datianwuliu" data-code="datianwuliu"><span>大田物流</span></a><a href="https://www.kuaidi100.com/all/dbwl.shtml" id="a-debangwuliu2" data-code="debangwuliu"><span>德邦快递</span></a></dd></dl><dl><dt>E</dt><dd><a href="https://www.kuaidi100.com/all/ems.shtml" id="a-ems2" title="EMS国内" data-code="ems"><span>EMS国内</span></a><a href="https://www.kuaidi100.com/all/emsguoji.shtml" id="a-emsguoji" title="EMS国际" data-code="emsguoji"><span>EMS国际</span></a><a href="https://www.kuaidi100.com/all/ems.shtml" id="a-ems3" title="E邮宝" data-code="ems"><span>E邮宝</span></a></dd></dl><dl class="dl-bg"><dt>F</dt><dd><a href="https://www.kuaidi100.com/all/rufengda.shtml" id="a-fedex2" title="凡客配送" data-code="rufengda"><span>凡客配送</span></a><a href="https://www.kuaidi100.com/all/fedex.shtml" id="a-fedex" title="fedex快递查询" data-code="fedex" style="width:110px;"><span>FedEx(国际件)</span></a></dd></dl><dl><dt>G</dt><dd><a href="https://www.kuaidi100.com/all/guotongkuaidi.shtml" id="a-guotongkuaidi" data-code="guotongkuaidi"><span>国通快递</span></a><a href="https://www.kuaidi100.com/all/yzgj.shtml" id="a-youzhengguonei" data-code="youzhengguonei"><span>挂号信</span></a><a href="https://www.kuaidi100.com/all/gongsuda.shtml" id="a-gongsuda" data-code="gongsuda"><span>共速达</span></a><a href="https://www.kuaidi100.com/all/yzgj.shtml" id="a-youzhengguoji" data-code="youzhengguoji"><span>国际小包</span></a></dd></dl><dl class="dl-bg"><dt>H</dt><dd><a href="https://www.kuaidi100.com/all/tdhy.shtml" id="a-tiandihuayu2" data-code="tiandihuayu"><span>华宇物流</span></a></dd></dl><dl><dt>J</dt><dd><a href="https://www.kuaidi100.com/all/jjwl.shtml" id="a-jiajiwuliu" title="佳吉物流" data-code="jiajiwuliu"><span>佳吉快运</span></a><a href="https://www.kuaidi100.com/all/jywl.shtml" id="a-jiayiwuliu" title="佳怡物流查询" data-code="jiayiwuliu"><span>佳怡物流</span></a><a href="https://www.kuaidi100.com/all/canpost.shtml" id="a-canpost" data-code="canpost"><span>加拿大邮政</span></a></dd></dl><dl class="dl-bg"><dt>K</dt><dd><a href="https://www.kuaidi100.com/all/kjkd.shtml" id="a-kuaijiesudi" title="快捷快递" data-code="kuaijiesudi"><span>快捷速递</span></a></dd></dl><dl><dt>L</dt><dd><a href="https://www.kuaidi100.com/all/lb.shtml" id="a-longbanwuliu" title="龙邦速递" data-code="longbanwuliu"><span>龙邦速递</span></a><a href="https://www.kuaidi100.com/all/lianb.shtml" id="a-lianbangkuaidi" title="联邦快递查询" data-code="lianbangkuaidi"><span>联邦快递</span></a><a href="https://www.kuaidi100.com/all/lhtwl.shtml" id="a-lianhaowuliu" title="联昊通物流" data-code="lianhaowuliu"><span>联昊通</span></a></dd></dl><dl class="dl-bg"><dt>N</dt><dd><a href="https://www.kuaidi100.com/all/ndkd.shtml" id="a-ganzhongnengda" data-code="ganzhongnengda"><span>能达速递</span></a></dd></dl><dl class="dl-bg"><dt>Q</dt><dd><a href="https://www.kuaidi100.com/all/qy.shtml" id="a-quanyikuaidi" data-code="quanyikuaidi"><span>全一快递</span></a><a href="https://www.kuaidi100.com/all/qjt.shtml" id="a-quanfengkuaidi" title="全峰快递单号查询"  data-code="quanfengkuaidi"><span>全峰快递</span></a><a href="https://www.kuaidi100.com/all/qrt.shtml" id="a-quanritongkuaidi" data-code="quanritongkuaidi"><span>全日通</span></a></dd></dl><dl><dt>S</dt><dd><a href="https://www.kuaidi100.com/all/st.shtml" id="a-shentong2" title="申通快递单号查询" data-code="shentong"><span>申通快递</span></a><a href="https://www.kuaidi100.com/all/sf.shtml" id="a-shunfeng2" title="顺丰快递查询" data-code="shunfeng"><span>顺丰快递</span></a><a href="https://www.kuaidi100.com/all/sewl.shtml" id="a-suer" title="速尔物流" data-code="suer"><span>速尔快递</span></a></dd></dl><dl class="dl-bg"><dt>T</dt><dd><a href="https://www.kuaidi100.com/all/tnt.shtml" id="a-tnt" data-code="tnt"><span>TNT快递</span></a><a href="https://www.kuaidi100.com/all/tt.shtml" id="a-tiantian2" title="海航天天快递" data-code="tiantian"><span>天天快递</span></a><a href="https://www.kuaidi100.com/all/tdhy.shtml" id="a-tiandihuayu" data-code="tiandihuayu"><span>天地华宇</span></a></dd></dl><dl><dt>U</dt><dd><a href="https://www.kuaidi100.com/all/ups.shtml" id="a-ups" data-code="ups"><span>UPS快递</span></a><a href="https://www.kuaidi100.com/all/usps.shtml" id="a-usps" data-code="usps" style="width:120px;"><span>USPS(美国邮政)</span></a></dd></dl><dl class="dl-bg"><dt>X</dt><dd><a href="https://www.kuaidi100.com/all/xbwl.shtml" id="a-xinbangwuliu"  data-code="xinbangwuliu"><span>新邦物流</span></a><a href="/all/newegg.shtml" id="a-newegg"  data-code="neweggozzo"><span>新蛋物流</span></a><a href="/all/hkpost.shtml" id="a-hkpost"  data-code="hkpost"><span>中国香港邮政</span></a></dd></dl><dl><dt>Y</dt><dd><a href="https://www.kuaidi100.com/all/yt.shtml" id="a-yuantong2" title="圆通快递查询单号"  data-code="yuantong"><span>圆通快递</span></a><a href="https://www.kuaidi100.com/all/yd.shtml" id="a-yunda2" title="韵达快递单号查询"  data-code="yunda"><span>韵达快递</span></a><a href="https://www.kuaidi100.com/all/yzgn.shtml" id="a-youzhengguonei3" data-code="youzhengguonei"><span>邮政包裹</span></a><a href="https://www.kuaidi100.com/all/yskd.shtml" id="a-youshuwuliu" title="优速快递"  data-code="youshuwuliu"><span>优速快递</span></a></dd></dl><dl class="dl-bg"><dt>Z</dt><dd><a href="https://www.kuaidi100.com/all/zt.shtml" id="a-zhongtong2" data-code="zhongtong"><span>中通快递</span></a><a href="https://www.kuaidi100.com/all/ztky.shtml" id="a-zhongtiewuliu"  title="中铁快运" data-code="zhongtiewuliu"><span>中铁快运</span></a><a href="https://www.kuaidi100.com/all/zjs.shtml" id="a-zhaijisong2" data-code="zhaijisong"><span>宅急送</span></a><a href="https://www.kuaidi100.com/all/zywl.shtml" id="a-zhongyouwuliu" data-code="zhongyouwuliu"><span>中邮物流</span></a></dd></dl>';return $html;
}

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