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php正则表达式获取内容所有链接_PHP

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Release: 2016-05-30 08:46:21
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方法一:

function get_all_url($code){ 
    preg_match_all('/<as+href=["|']&#63;([^>"' ]+)["|']&#63;s*[^>]*>([^>]+)</a>/i',$code,$arr); 
    return array('name'=>$arr[2],'url'=>$arr[1]); 
}

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方法二:

/**
 * date 2015-07-24
 **/
 
$site=substr($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);// 
$pattern="|href=['"]&#63;([^ '"]+)['" ]|u"; 
preg_match_all($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[$i][1]."<br/>";//根目录 
else
  echo "link".($i+1).":".$base.$regarr[$i][1]."<br/>";//当前目录 
else
echo "link".($i+1).":".$regarr[$i][1]."<br/>";//相对路径 
}
fclose($fp);
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以上所述就是本文的全部内容了,希望大家能够喜欢。

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