提取Gregarius中的一个函数。可以把网页中的相对路径自动转化成绝对路径。
<?
functionrelative_to_absolute($content,$Feed_url){
preg_match('/(http|https|ftp):\/\//',$Feed_url,$protocol);
$server_url=preg_replace("/(http|https|ftp|news):\/\//","",$Feed_url);
$server_url=preg_replace("/\/.*/",$server_url); if($server_url==''){
return$content;
} if(isset($protocol[0])){
$new_content=preg_replace('/href="\//','href="'.$protocol[0].$server_url.'/',$content);
$new_content=preg_replace('/src="\//','src="'.$protocol[0].$server_url.'/',$new_content);
}else{
$new_content=$content;
}
return$new_content;
}
?>
