抓取网页中数据 -----51book中城市码

================== 获取网页中span标签里面的t_id的值

public function getpreg(){
$www = 'http://monkey.test.tripb.cn/test/preg.html';
$html = file_get_contents($www);
$search = '/<span([^>]*)\s*t_id=(\'|\")([^\'\"]+)(\'|\")/';
preg_match_all($search, $html, $t_id);

echo '<meta http-equiv="Content-type" content="text/html:charset=utf-8">';
echo '<pre>';

$str = implode('+',$t_id[3]);

$new = explode('+',$str);

$arr = array();
$arr1 = '';
foreach($new as $k=>$v){
$arr[] = preg_split('/[\s]+/',$v);
}
foreach($arr as $k=>$v){
echo $v[0].' '.$v[1];
echo '<br/>';
}
// var_dump($arr1);
}

==================          test/preg.html

<ul id="popup_content">
<li><div id="index_A"><span t_id="阿克苏 AKU Aksu">阿克苏</span><span t_id="阿尔山 YIE Alshan">阿尔山</span><span t_id="阿里 NGQ Ali">阿里</span><span t_id="阿勒泰 AAT Altay">阿勒泰</span><span t_id="安康 AKA AnKang">安康</span><span t_id="安庆 AQG AnQing">安庆</span><span t_id="鞍山 AOG AnShan">鞍山</span><span t_id="安顺 AVA AnShun">安顺</span><span t_id="阿拉善左旗 AXF ALaShanZuoQi">阿拉善左旗</span><span t_id="阿拉善右旗 RHT ALaShanYouQi">阿拉善右旗</span><span t_id="阿坝 AHJ ABa">阿坝</span><em class="letters red">A</em></div><div id="index_B"><span t_id="百色 AEB BaiSe">百色</span><span t_id="蚌埠 BFU BangBu">蚌埠</span><span t_id="保山 BSD BaoShan">保山</span><span t_id="包头 BAV BaoTou">包头</span><span t_id="巴彦淖尔 RLK BaYanNaoEr">巴彦淖尔</span><span t_id="北海 BHY BeiHai">北海</span><span t_id="北京 PEK BeiJing">北京</span><span t_id="北京南苑 NAY BeiJingNanYuan">北京南苑</span><span t_id="毕节 BFJ BiJie">毕节</span><span t_id="博乐 BPL BoLe">博乐</span><span t_id="北戴河 BPE BeiDaiHe">北戴河</span><em class="letters red">B</em></div><div id="index_C"><span t_id="长春 CGQ ChangChun">长春</span><span t_id="常德 CGD ChangDe">常德</span><span t_id="昌都 BPX ChangDu">昌都</span><span t_id="长沙 CSX ChangSha">长沙</span><span t_id="长治 CIH ChangZhi">长治</span><span t_id="常州 CZX ChangZhou">常州</span><span t_id="长白山 NBS ChangBaiShan">长白山</span><span t_id="朝阳 CHG ChaoYang">朝阳</span><span t_id="成都 CTU ChengDu">成都</span><span t_id="赤峰 CIF ChiFeng">赤峰</span><span t_id="重庆 CKG ChongQing">重庆</span><span t_id="清莱 CEI CHIANG RIA">清莱</span><em class="letters red">C</em></div><div id="index_D"><span t_id="稻城亚丁 DCY DaoCheng">稻城亚丁</span><span t_id="大理 DLU DaLi">大理</span><span t_id="大连 DLC DaLian">大连</span><span t_id="大同 DAT DaTong">大同</span><span t_id="达县 DAX DaXian">达县</span><span t_id="丹东 DDG DanDong">丹东</span><span t_id="大庆 DQA DAQING">大庆</span><span t_id="德宏芒市 LUM DeHong">德宏芒市</span><span t_id="东营 DOY DongYing">东营</span><span t_id="敦煌 DNH DunHuang">敦煌</span><span t_id="德令哈 HXD DeLingHa">德令哈</span><span t_id="大叻 DLI DaLat">大叻</span><em class="letters red">D</em></div><div id="index_E"><span t_id="额济纳旗 EJN EJiNaQi">额济纳旗</span><span t_id="恩施 ENH EnShi">恩施</span><span t_id="二连浩特 ERL ErLianHaoTe">二连浩特</span><em class="letters red">E</em></div><div id="index_F"><span t_id="佛山 FUO FoShan">佛山</span><span t_id="阜阳 FUG FuYang">阜阳</span><span t_id="富蕴 FYN FuYun">富蕴</span><span t_id="福州 FOC FuZhou">福州</span><span t_id="抚远 FYJ FuYuan">抚远</span><em class="letters red">F</em></div></li><li><div id="index_G"><span t_id="赣州 KOW GanZhou">赣州</span><span t_id="格尔木 GOQ GeErMu">格尔木</span><span t_id="广汉 GHN GuangHan">广汉</span><span t_id="广元 GYS GuangYuan">广元</span><span t_id="广州 CAN GuangZhou">广州</span><span t_id="桂林 KWL GuiLin">桂林</span><span t_id="贵阳 KWE Guiyang">贵阳</span><span t_id="固原 GYU GuYuan">固原</span><em class="letters red">G</em></div><div id="index_H"><span t_id="哈密 HMI HaMi">哈密</span><span t_id="哈尔滨 HRB HaRBin">哈尔滨</span><span t_id="海口 HAK HaiKou">海口</span><span t_id="海拉尔 HLD Hailar">海拉尔</span><span t_id="汉中 HZG HanZhong">汉中</span><span t_id="邯郸 HDG HanDan">邯郸</span><span t_id="杭州 HGH HangZhou">杭州</span><span t_id="合肥 HFE HeFei">合肥</span><span t_id="和田 HTN HeTan">和田</span><span t_id="黑河 HEK HeiHe">黑河</span><span t_id="衡阳 HNY HengYang">衡阳</span><span t_id="呼和浩特 HET HuHeHaoTe">呼和浩特</span><span t_id="淮安 HIA HuaiAn">淮安</span><span t_id="黄山 TXN HuangShan">黄山</span><span t_id="黄岩 HYN HuangYan">黄岩</span><span t_id="乌兰浩特 HLH HUlanhot">乌兰浩特</span><span t_id="顺化 HUI HUE">顺化</span><span t_id="惠州 HUZ HuiZhou">惠州</span><span t_id="河池 HCJ HeChi">河池</span><span t_id="花土沟 HTT HuaTuGou">花土沟</span><em class="letters red">H</em></div><div id="index_I"></div><div id="index_J"><span t_id="九华山 JUH JiuHuaShan">九华山</span><span t_id="吉安 KNC JiAn">吉安</span><span t_id="济宁 JNG JiNing">济宁</span><span t_id="吉林 JIL JiLin">吉林</span><span t_id="济南 TNA JiNan">济南</span><span t_id="鸡西 JXA JiXi">鸡西</span><span t_id="佳木斯 JMU JiaMuSi">佳木斯</span><span t_id="嘉峪关 JGN JiaYuGuan">嘉峪关</span><span t_id="锦州 JNZ JinZhou">锦州</span><span t_id="景德镇 JDZ JingDeZhen">景德镇</span><span t_id="井冈山 JGS JingGangShan">井冈山</span><span t_id="西双版纳 JHG JingHong">西双版纳</span><span t_id="九江 JIU JiuJiang">九江</span><span t_id="酒泉 CHW JiuQuan">酒泉</span><span t_id="九寨沟 JZH JIUZHAIGOU">九寨沟</span><span t_id="揭阳 SWA JieYang">揭阳</span><span t_id="金昌 JIC JingChang">金昌</span><span t_id="加格达奇 JGD JiaGeDaQi">加格达奇</span><em class="letters red">J</em></div></li><li><div id="index_K"><span t_id="喀什 KHG KaShi">喀什</span><span t_id="喀纳斯 KJI KaNaSi">喀纳斯</span><span t_id="康定 KGT KangDing">康定</span><span t_id="克拉玛依 KRY Karamay">克拉玛依</span><span t_id="库尔勒 KRL Korla">库尔勒</span><span t_id="昆明 KMG KuMing">昆明</span><span t_id="库车 KCA KuQa">库车</span><span t_id="凯里黄平 KJH KaiLiHuangPing">凯里黄平</span><span t_id="苏梅岛 USM KohSamui">苏梅岛</span><em class="letters red">K</em></div><div id="index_L"><span t_id="兰州 LHW LanZhou">兰州</span><span t_id="拉萨 LXA Lasa">拉萨</span><span t_id="荔波 LLB LiBo">荔波</span><span t_id="丽江 LJG LiJiang">丽江</span><span t_id="吕梁 LLV LvLiang">吕梁</span><span t_id="黎平 HZH LiPing">黎平</span><span t_id="丽水 RSU LiShui">丽水</span><span t_id="连云港 LYG LianYunGang">连云港</span><span t_id="连城 LCX LianCheng">连城</span><span t_id="临沧 LNJ LinChang">临沧</span><span t_id="临沂 LYI LinYi">临沂</span><span t_id="伊春林都 LDS Lindu">伊春林都</span><span t_id="林芝 LZY LinZhi">林芝</span><span t_id="柳州 LZH LiuZhou">柳州</span><span t_id="泸州 LZO LuZhou">泸州</span><span t_id="洛阳 LYA LuoYang">洛阳</span><span t_id="六盘水 LPF LiuPanShui">六盘水</span><span t_id="临汾 LFQ LinFen">临汾</span><em class="letters red">L</em></div><div id="index_M"><span t_id="绵阳 MIG ManYang">绵阳</span><span t_id="满洲里 NZH ManZhouLi">满洲里</span><span t_id="梅县 MXZ MeiXian">梅县</span><span t_id="漠河 OHE MOHE">漠河</span><span t_id="牡丹江 MDG MuDanJiang">牡丹江</span><em class="letters red">M</em></div><div id="index_N"><span t_id="那拉提 NLT NaLaTi">那拉提</span><span t_id="南昌 KHN NanChang">南昌</span><span t_id="南充 NAO NanChong">南充</span><span t_id="南京 NKG NanJing">南京</span><span t_id="南宁 NNG NanNing">南宁</span><span t_id="南通 NTG NanTong">南通</span><span t_id="南阳 NNY NanYang">南阳</span><span t_id="宁波 NGB NingBo">宁波</span><span t_id="良乌 NYU NYAUNG-U">良乌</span><span t_id="宁蒗 NLH NingLang">宁蒗</span><em class="letters red">N</em></div></li><li><div id="index_P"><span t_id="攀枝花 PZI PanZhiHua">攀枝花</span><span t_id="普洱 SYM PuEr">普洱</span><span t_id="濮阳 PYY PuYang">濮阳</span><span t_id="帕罗 PBH PARO">帕罗</span><em class="letters red">P</em></div><div id="index_Q"><span t_id="泉州晋江 JJN QuanZhouJinJiang">泉州晋江</span><span t_id="衢州 JUZ QuZhou">衢州</span><span t_id="齐齐哈尔 NDG QiQiHar">齐齐哈尔</span><span t_id="且末 IQM QieMo">且末</span><span t_id="秦皇岛 SHP QinHuangDao">秦皇岛</span><span t_id="青岛 TAO QingDao">青岛</span><span t_id="庆阳 IQN QingYang">庆阳</span><span t_id="琼海 BAR QiongHai">琼海</span><em class="letters red">Q</em></div><div id="index_R"><span t_id="日喀则 RKZ RiKaZe">日喀则</span><span t_id="日照 RIZ RiZhao">日照</span><em class="letters red">R</em></div><div id="index_S"><span t_id="三亚 SYX SanYa">三亚</span><span t_id="沙市 SHS ShaShi">沙市</span><span t_id="汕头 SWA ShanTou">汕头</span><span t_id="上海虹桥 SHA ShangHai">上海虹桥</span><span t_id="上海浦东 PVG ShangHaiPoDong">上海浦东</span><span t_id="沈阳 SHE ShenYang">沈阳</span><span t_id="深圳 SZX ShenZhen">深圳</span><span t_id="石家庄 SJW ShiJiaZhuang">石家庄</span><span t_id="思茅 SYM SiMao">思茅</span><span t_id="神农架 HPG ShenNongJia">神农架</span><span t_id="静冈 FSZ Shizuoka">静冈</span><span t_id="苏州 SZV SuZhou">苏州</span><span t_id="十堰 WDS ShiYan">十堰</span><span t_id="三明 SQJ SanMing">三明</span><span t_id="石河子 SHF ShiHeZi">石河子</span><em class="letters red">S</em></div><div id="index_T"><span t_id="台州 HYN TaiZhou">台州</span><span t_id="塔城 TCG TaCheng">塔城</span><span t_id="太原 TYN TaiYuan">太原</span><span t_id="腾冲 TCZ TengChong">腾冲</span><span t_id="天津 TSN TianJin">天津</span><span t_id="天水 THQ TianShui">天水</span><span t_id="通化 TNH TongHua">通化</span><span t_id="通辽 TGO TongLiao">通辽</span><span t_id="铜仁 TEN TongRen">铜仁</span><span t_id="唐山 TVS TangShan">唐山</span><span t_id="吐鲁番 TLQ TuLuFan">吐鲁番</span><em class="letters red">T</em></div><div id="index_W"><span t_id="乌鲁木齐 URC WuLuMuQi">乌鲁木齐</span><span t_id="万州 WXN WanZhou">万州</span><span t_id="潍坊 WEF WeiFang">潍坊</span><span t_id="威海 WEH WeiHai">威海</span><span t_id="文山 WNH WenSan">文山</span><span t_id="温州 WNZ WenZhou">温州</span><span t_id="乌海 WUA WuHai">乌海</span><span t_id="武汉 WUH WuHan">武汉</span><span t_id="无锡 WUX WuXi">无锡</span><span t_id="武夷山 WUS WuYiShan">武夷山</span><span t_id="梧州 WUZ WuZhou">梧州</span><span t_id="乌兰察布 UCB WuLanChaBu">乌兰察布</span><span t_id="五台山 WTS WuTaiShan">五台山</span><em class="letters red">W</em></div></li><li><div id="index_X"><span t_id="香格里拉 DIG XIANGGELILA">香格里拉</span><span t_id="夏河 gxh XiaHe">夏河</span><span t_id="西安 XIY XiAn">西安</span><span t_id="西昌 XIC XiChang">西昌</span><span t_id="西宁 XNN XiNing">西宁</span><span t_id="厦门 XMN XiaMen">厦门</span><span t_id="襄阳 XFN XiangYang">襄阳</span><span t_id="锡林浩特 XIL XiLinHot">锡林浩特</span><span t_id="兴义 ACX XingYi">兴义</span><span t_id="徐州 XUZ XuZhou">徐州</span><span t_id="忻州 WUT XinZhou">忻州</span><em class="letters red">X</em></div><div id="index_Y"><span t_id="扬州 YTY YangZhou">扬州</span><span t_id="延安 ENY YanAn">延安</span><span t_id="盐城 YNZ YanCheng">盐城</span><span t_id="延吉 YNJ YanJi">延吉</span><span t_id="烟台 YNT YanTai">烟台</span><span t_id="宜宾 YBP YiBin">宜宾</span><span t_id="宜昌 YIH YiChang">宜昌</span><span t_id="伊宁 YIN YiNing">伊宁</span><span t_id="义乌 YIW YiWu">义乌</span><span t_id="宜春 YIC YiChun">宜春</span><span t_id="鄂尔多斯 DSN YiJinHuoLuo">鄂尔多斯</span><span t_id="银川 INC YinChuan">银川</span><span t_id="英德 ENE YingDe">英德</span><span t_id="永州 LLF YongZhou">永州</span><span t_id="榆林 UYN YuLin">榆林</span><span t_id="玉树 YUS YuShu">玉树</span><span t_id="运城 YCU YunCheng">运城</span><span t_id="芽庄金兰 CXR YaZhuangJinLan">芽庄金兰</span><span t_id="营口 YKH YingKou">营口</span><em class="letters red">Y</em></div><div id="index_Z"><span t_id="湛江 ZHA ZhanJiang">湛江</span><span t_id="张家界 DYG ZhangJiaJie">张家界</span><span t_id="张家口 ZQZ ZhangJiaKou">张家口</span><span t_id="昭通 ZAT ZhaoTong">昭通</span><span t_id="郑州 CGO ZhengZhou">郑州</span><span t_id="芷江 HJJ ZhiJiang">芷江</span><span t_id="中卫 ZHY ZhongWei">中卫</span><span t_id="重庆舟白 JIQ ZhouBai">重庆舟白</span><span t_id="舟山 HSN ZhouShan">舟山</span><span t_id="珠海 ZUH ZhuHai">珠海</span><span t_id="张掖 YZY ZhangYe">张掖</span><span t_id="遵义 ZYI ZunYi">遵义</span><em class="letters red">Z</em></div></li>
</ul>