获取笑话集网站笑话数据的后台代码

最近做了一个app用于获取笑话集网站的数据，为了方便开发。我先用PHP对数据进行了预处理

代码如下

 

<?php

include_once("writeLog.php");

class Joke

{

	var $jokeText = "";

	var $urlNext = "";

	var $urlPrv = "";

	var $urlBase = "http://wap.jokeji.cn/";

	

	function __construct()

	{

		

	}

	function getContent($url){

		MyLog("url.log",$url);

		$html = file_get_contents(iconv("gb2312","UTF-8",$url));

		$begin = stripos($html,"<div class=\"joketxt\">") + 23;

		$end = stripos($html,"<script",$begin);

		$r = substr($html, $begin, $end - $begin);

		$r = str_ireplace("<p>","",$r);

		$r = str_ireplace("</p>","",$r);

		$r = str_ireplace("<br>","\r\n",$r);

		$this->jokeText = $r;

		$begin = stripos($html,"上一篇：<a");

		if ($begin != false)

		{

			$begin += 27;

			$end = stripos($html,"\"",$begin);

			$this->urlNext = substr($html, $begin, $end - $begin);

		}

		$begin = stripos($html,"下一篇：<a");

		if ($begin != false)

		{

			$begin = $begin + 27;

			$end = stripos($html,"\"",$begin);

			$this->urlPrv = substr($html, $begin, $end - $begin);

		}

	}

	

	function getFirstLink()

	{

		$html = file_get_contents($this->urlBase);

		$begin = stripos($html,"<div class=\"list\">") + 42;

		$end = stripos($html,"\"",$begin);

		$r = substr($html, $begin, $end - $begin);

		return $r;

	}

	

	function getJoke($u){

		if ($u == "")

		{

			$url = $this->urlBase.$this->getFirstLink();

		}

		else

		{

			$url = $this->urlBase.urlencode($u);

		}

		$this->getContent($url);

		

		$joke = array();

		$joke["content"] = $this->jokeText;

		$joke["next"] = $this->urlNext;

		$joke["previous"] = $this->urlPrv;

		return $joke;

	}

		

}