Ayuda: Función para sacar rutas en un código fuente html

[Un_Tico]

Mmmm....

hace algun tiempo me hice una clasesita para manejar URL's talvez le falte algo pero me ha servido para lo que la he necesitado.

Aqui Ta:

Código:

<?php

class sys_url {

	var $scheme;
	var $domain;
	var $port;
	var $path;  # e.g:  /site/   always between '/'
	var $filename;
	var $query; # id=1&b=2&c=3&...
	var $query_vars; #array of 'name'=>value from query;

	var $user;
	var $pass;
	
	function sys_url(){
		$this->scheme = 'http';
		$this->domain = ''; // domain | IP
		$this->port = 80;
		$this->path = '/';
		$this->filename = '';
		$this->query = '';
		$this->query_vars = array();

		$this->user = NULL;
		$this->pass = NULL;
	}
	
	function print_url_info(){
		$info = array();
		$info['scheme'] = $this->scheme;
		$info['domain'] = $this->domain;
		$info['port'] = $this->port;
		$info['path'] = $this->path;
		$info['filename'] = $this->filename;
		$info['query'] = $this->query;
		return $info;
	}
	
	function set_url($full_url=''){		

		if( $full_url == '' ){
		
			$this->domain = str_replace('/','',$_SERVER['SERVER_NAME']);
			$this->port = $_SERVER['SERVER_PORT'];
			$this->filename = basename(__FILE__);//$_SERVER['PHP_SELF'];
			$this->path = substr($_SERVER['REQUEST_URI'],0,strrpos($_SERVER['REQUEST_URI'],'/'.$this->filename)).'/';
			$this->query = $_SERVER['QUERY_STRING'];
			$this->set_query($this->query);
			$result = TRUE;
			
		} else {
			
			$info = parse_url($full_url);
			$this->domain = $info['scheme'];
			$this->port = $info['port'];
			$this->path = $info['path'];
			$this->filename = '';
			$this->query = $info['query'];
			$result = TRUE;
		}
		return $result;
	}

	function set_scheme($scheme){
		### VALID SCHEMES: http, https, ftp, gopher. ###
		$result = FALSE;
		$valid_schemes = array('http','https');
		if( in_array($scheme,$valid_schemes) ){
			$this->scheme = $scheme;
			$result = TRUE;
		}
		return $result;		
	}
	
	function set_domain($domain){
		$this->domain = $domain;
	}
	
	function get_domain(){
		return $this->domain;
	}
	
	function set_path($path){
		$this->path = $path;
		if( substr($path,-1,1)!='/' ){
			$this->path .= '/';
		}		
	}
	
	function get_path(){
		return $this->path;
	}
	
	function set_filename($filename){
		$this->filename = $filename;
	}
	
	function get_filename(){
		return $this->filename;
	}
	
	function set_query($query){
		$query_vars = array();
		if( $query!='' ){
			$tmp_query = explode('&',$this->query);
			foreach($tmp_query as $value){
				unset($tmp_name,$tmp_val);
				list($tmp_name,$tmp_val) = explode('=',$value);
				$query_vars[$tmp_name] = $tmp_val;
			}
			$this->query_vars = $query_vars;
		}
		return TRUE;
	}
	
	function get_query(){
		return $this->query;
	}
	
	function rebuild_query(){
		$tmp_query = '';
		if( count($this->query_vars)>0 ){
			reset($this->query_vars);
			while( list($tmp_name,$tmp_val) = each($this->query_vars) ){
				if( $tmp_query!='' ){
					$tmp_query .= '&';
				}
				$tmp_query .= $tmp_name.'='.$tmp_val;
			}
			$this->query = $tmp_query;
		}				
	}
	
	function add_query_val($name,$value){
		$result = FALSE;
		if( $name!='' ){
			$this->query_vars[$name] = $value;
			$this->rebuild_query();
			$result = TRUE;
		} 		
		return $result;
	}
	
	function del_query_val($name){
		$result = FALSE;
		if( array_key_exists($name,$this->query_vars) ){
			unset($this->query_vars[$name]);
			$this->rebuild_query();
			$result = TRUE;
		} 
		return $result;
	}
	
	function get_rel_url_from($rel_path){
		$rel_path = '';
		$prev = '../';
		$tree_path = explode('/',$this->path);
		return $result;
	}
	
	function get_rel_url(){
		$result = $this->filename;
		$query_string = trim($this->query);
		if( $query_string!='' ){
			$result .= '?'.$query_string;
		}
		return $result;
	}
	
	function get_full_url(){
		$full_url = $this->scheme.'://'.$this->domain.$this->get_path().$this->get_rel_url();
		
		return $full_url;
	}
}

?>

Saludos...