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php正则表达式取得内容所有链接
function get_all_url($code){ preg_match_all('/"' ]+)["|']?s*[^>]*>([^>]+)/i',$code,$arr); return array('name'=>$arr[2],'url'=>$arr[1]); }
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2. [代码]方法二
/** * date 2015-07-24 * edit http://www.aichengxu.com/view/62054 **/ $site=substr($url,0,strpos($url,"/",8));//站点 $base=substr($url,0,strrpos($url,"/")+1);//文件所在目录 $fp = fopen($url, "r" );//打开url while(!feof($fp))$contents.=fread($fp,1024);// $pattern="|href=['"]?([^ '"]+)['" ]|u"; preg_match_all($pattern,$contents, $regarr, preg_set_order);//匹配所有href= for($i=0;$i<count($regarr);$i++){//遍历所有匹配 if(!eregi("://",$regarr[$i][1]))//是否是相对路径,即是否还有:// if(substr($regarr[$i][1],0,1)=="/")//是否是站点的根目录 echo "link".($i+1).":".$site.$regarr[$i][1]." ";//根目录 else echo "link".($i+1).":".$base.$regarr[$i][1]." ";//当前目录 else echo "link".($i+1).":".$regarr[$i][1]." ";//相对路径 } fclose($fp);
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