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3.预定义字符范围
以下为引用的内容：
[:alpha:]同[a-zA-Z]
[:alnum:]同[a-zA-Z0-9]
[:cntrl:]匹配控制字符，比如制表符，反斜杠，退格符
[:digit:]同[0-9]
[:graph:]所有ASCII33~166范围内可以打印的字符
[:lower:]同[a-z]
[:punct:]标点符号
[:upper:]同[A-Z]
[:space:]空白字符，可以是空格、水平制表符、换行、换页、回车
[:xdigit:]十六进制符同[a-fA-F0-9] |
废话不多说，直接上我的源码吧，有什么不懂的可以上百度查查。
以下为引用的内容：
<?php
header("Content-type: text/html; charset=utf-8");
getinfo("http://rss.sina.com.cn/rollnews/news/gn_total.js",1);
getinfo("http://rss.sina.com.cn/rollnews/news/gj_total.js",2);
getinfo("http://rss.sina.com.cn/rollnews/news/sh_total.js",3);
getinfo("http://rss.sina.com.cn/rollnews/sports/sports_total.js",4);
getinfo("http://rss.sina.com.cn/rollnews/tech/tech1_total.js",5);
getinfo("http://rss.sina.com.cn/rollnews/finance/finance1_news_total.js",6);
getinfo("http://rss.sina.com.cn/rollnews/ent/ent_total.js",7);
getinfo("http://rss.sina.com.cn/rollnews/jczs/jczs_total.js",8);
function getinfo($infourl,$catid)
{
$pagecontent=getwebcontent($infourl);
preg_match_all("/title:\"(.*?)\"/", $pagecontent, $match);
$titlearr=$match[1];
preg_match_all("/link:\"(.*?)\"/", $pagecontent, $match);
$urlarr=$match[1];
for ($i=1;$i<count($urlarr);$i++){
echo "go {$titlearr[$i-1]}\n";
$title=iconv("gbk","utf-8",$titlearr[$i-1]);
$content=iconv("gbk","utf-8",getnewscontent($urlarr[$i]));
$content=mysql_escape_string($content);
if(!insertdb($title,$content,$catid)) break;
}
}
function insertdb($title,$content,$catid){
将数据写入你的库
}
function getnewscontent($newsurl){
$newscontent=getwebcontent($newsurl);
preg_match_all("/<div class=\"blkContainerSblkCon\" id=\"artibody\">([\s\S]*?)<!-- publish_helper_end -->/",$newscontent,$match);
$content=preg_replace("/<a.*?<\/a>/si","",$match[1][0]);
$content=preg_replace("/<div style=\"overflow:hidden;zoom:1;\" class=\"otherContent_01\">.*?<\/div>/si","",$content);
$content=preg_replace("/<div class=\"blk-video\">.*?<div class=\"clearcl\"><\/div>/si","",$content);
$content=str_replace("<div style=\"clear:both;height:0;visibility:hiddden;overflow:hidden;\"></div>","",$content);
return $content;
}
function getwebcontent($url){
$ch = curl_init();
$timeout = 10;
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, 1);
$contents = trim(curl_exec($ch));
curl_close($ch);
return $contents;
}
?> |
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