Home >php教程 >php手册 >php正则表达式获取内容所有链接,php正则表达式获取

php正则表达式获取内容所有链接,php正则表达式获取

WBOY
WBOYOriginal
2016-06-13 08:57:221664browse

php正则表达式获取内容所有链接,php正则表达式获取

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]); 
}

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);

以上所述就是本文的全部内容了,希望大家能够喜欢。

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn