<?php

/**

 * Created by JetBrains PhpStorm.

 * User: keygle

 * Date: 13-8-3

 * Time: 下午2:04

 * From  www.cnblogs.com/keygle

 */

/**

 * [curl 带重试次数]

 * @param  [type]  $url     [访问的url]

 * @param  [type]  $post    [$POST参数]

 * @param  integer $retries [curl重试次数]

 * @return [type]           [description]

 */

function curlGetHtml($url, $post = null, $retries = 3){

    $ch = curl_init();

    if(is_resource($ch) === true){

        curl_setopt($ch, CURLOPT_URL, $url);

        curl_setopt($ch, CURLOPT_FAILONERROR, true);

        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);

        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

        curl_setopt($ch, CURLOPT_REFERER, "http://wap.tvmao.com/");

        curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/28.0.1500.95 Safari/537.36");

        if(isset($post) === true){

            curl_setopt($ch, CURLOPT_POST, true);

            curl_setopt($ch, CURLOPT_POSTFIELDS, (is_array($post) === true) ? http_build_query($post, "", "&"): $post);

        }

        $result = false;

        while(($result === false) && (--$retries > 0)){

            $result = curl_exec($ch);

        }

        curl_close($ch);

    }

    return $result;

}

/**

 * [getTvUrl 获得电视台链接数组]

 * @param  [type] $tvListHtml [页面html ]

 * @return [type]             [description]

 */

function getTvUrl($tvListHtml){

    $tvListArray = array();

    //正则匹配 url 和 电视台名

    preg_match_all('#<a href="/([^"]+)">(.*?)</a><br/>#i', $tvListHtml, $matches);

    foreach ($matches[1] as $key => $value) {

        $tvListArray[$key]['url'] ="http://wap.tvmao.com/".html_entity_decode($value); //html 实体转换

        $tvListArray[$key]['name'] = $matches[2][$key];

    }

    return $tvListArray;

}

/**

 * [getPlayItems 获得电视节目预告]

 * @param  [type] $tvUrl [description]

 * @return [type]        [description]

 */

function getPlayItems($tvUrl){

    $playItems = array();

    $itemHtml = curlGetHtml($tvUrl);

    preg_match_all("#r/>([^<]+)?<b#i", $itemHtml, $matches);

    array_shift($matches[1]); //去掉数组的第一个

    $playItems = $matches[1];

    return $playItems;

}

//获得央视 的所有频道

$url = "http://wap.tvmao.com/cctv.jsp";

$tvListHtml  = curlGetHtml($url);

$tvListArray = getTvUrl($tvListHtml);

print_r($tvListArray);

// 获得cctv1的 周六 节目预告

$tvUrl = "http://wap.tvmao.com/program.jsp?p=CCTV&c=CCTV1&w=6";

$playItems = getPlayItems($tvUrl);

print_r($playItems);