czytanie watoci zmiennych w funkcji Opcje

[MitS]

witam mam maly problem... otoz pare dni temu zabralem sie za programowanie obiektowe no i od razu natrafilem na problem z którym se nie moge poradzić ... otoz mam klase:

[PHP] pobierz, plaintext 
<?php
class Gallery {
	private $arrow_left, $arrow_right, $symbol_left, $symbol_right, $link;
	private $dir;
 
	public function _construct($dir, $arrow_left, $arrow_right, $symbol_left, $symbol_right, $link) {
		$this->_dir = $dir;
		$this->_arrow_left = $arrow_left;
		$this->_arrow_right = $arrow_right;
		$this->_symbol_left = $symbol_left;
		$this->_symbol_right = $symbol_right;
		$this->_link = $link;
	}
 
	private function get_files($folder, $filtr){
		$katalog=opendir($folder);
		$file=array(); 
		while ($next_file = readdir($katalog)){
			if (is_file($folder.'/'.$next_file) && ereg($filtr, $next_file)){
				 $file[]=$next_file;
			}
		}
		closedir($katalog);
		sort($file);
		return  $file;
	}	
 
	public function show_gallery(){
		$pliki = $this->get_files($this->_dir, ".jpg$|.gif$");  
		if($_GET['todo'] == '')	$nr = 0;
		else $nr = $_GET['todo'];
	   
		if (isset($nr))	{
			if ($nr==0)
				 echo '
				 <img src="'.$this->_arrow_left.'" alt="'.$this->_symbol_left.'" />';
			else   
				  echo '
				  <a href="'.$this->_link.'?mod=gallery&todo='.($nr-1).'" onfocus="blur();">
					  <img src="'.$this->_arrow_left.'" alt="'.$this->_symbol_left.'" />
				  </a>';	
			if ($nr==(count($pliki)-1))
				 echo '
				 <img src="'.$this->_arrow_right.'" alt="'.$this->_symbol_right.'" />';
			else   
				  echo '
				  <a href="'.$this->_link.'?mod=gallery&todo='.($nr+1).'" onfocus="blur();">
					  <img src="'.$this->_arrow_right.'" alt="'.$this->_symbol_right.'" />
				  </a>';	   
 
			echo '<br /><br />
			<div>
				<img src="'.$this->_dir.'/'.$pliki[$nr].'" alt="'.($nr+1).'" />
			</div>';
		 }
	}
}
?>
[PHP] pobierz, plaintext 

oraz plik php:

[PHP] pobierz, plaintext 
<?php
 
$dir = './gallery';
$arrow_left = '';
$arrow_right = '';
$symbol_left = '<<';
$symbol_right = '>>';
$link = 'index.php';   
 
$gallery = new Gallery($dir, $arrow_left, $arrow_right, $symbol_left, $symbol_right, $link);
 
$slide = $gallery->show_gallery();
 
echo $slide;
?>
[PHP] pobierz, plaintext 

no i blądów jest co niemiara...
Moje pytanie ... jak z konstruktora przenieść zmienne do funkcji show_gallery()
by bylo ok (IMG:http://forum.php.pl/style_emoticons/default/questionmark.gif) ?

bo jak robie tak jak powyzej to wywala mi takie blędy:

Kod

Notice: Undefined property: Gallery::$_dir in /var/www/html/piaskownica/__classes/class.Gallery.php on line 40
Warning: readdir(): supplied argument is not a valid Directory resource in /var/www/html/piaskownica/__classes/class.Gallery.php on line 23
Warning: closedir(): supplied argument is not a valid Directory resource in /var/www/html/piaskownica/__classes/class.Gallery.php on line 31
Notice: Undefined property: Gallery::$_link in /var/www/html/piaskownica/__classes/class.Gallery.php on line 55
Notice: Undefined property: Gallery::$_arrow_left in /var/www/html/piaskownica/__classes/class.Gallery.php on line 56
Notice: Undefined property: Gallery::$_symbol_left in /var/www/html/piaskownica/__classes/class.Gallery.php on line 56
Notice: Undefined property: Gallery::$_link in /var/www/html/piaskownica/__classes/class.Gallery.php on line 64
Notice: Undefined property: Gallery::$_arrow_right in /var/www/html/piaskownica/__classes/class.Gallery.php on line 65
Notice: Undefined property: Gallery::$_symbol_right in /var/www/html/piaskownica/__classes/class.Gallery.php on line 65
Notice: Undefined property: Gallery::$_dir in /var/www/html/piaskownica/__classes/class.Gallery.php on line 70
Notice: Undefined index: 7 in /var/www/html/piaskownica/__classes/class.Gallery.php on line 70
" title="Zobacz w manualu PHP" target="_manual">
Notice: Undefined property: Gallery::$_dir in /var/www/html/piaskownica/__classes/class.Gallery.php on line 40
Warning: readdir(): supplied argument is not a valid Directory resource in /var/www/html/piaskownica/__classes/class.Gallery.php on line 23
Warning: closedir(): supplied argument is not a valid Directory resource in /var/www/html/piaskownica/__classes/class.Gallery.php on line 31
Notice: Undefined property: Gallery::$_link in /var/www/html/piaskownica/__classes/class.Gallery.php on line 55
Notice: Undefined property: Gallery::$_arrow_left in /var/www/html/piaskownica/__classes/class.Gallery.php on line 56
Notice: Undefined property: Gallery::$_symbol_left in /var/www/html/piaskownica/__classes/class.Gallery.php on line 56
Notice: Undefined property: Gallery::$_link in /var/www/html/piaskownica/__classes/class.Gallery.php on line 64
Notice: Undefined property: Gallery::$_arrow_right in /var/www/html/piaskownica/__classes/class.Gallery.php on line 65
Notice: Undefined property: Gallery::$_symbol_right in /var/www/html/piaskownica/__classes/class.Gallery.php on line 65
Notice: Undefined property: Gallery::$_dir in /var/www/html/piaskownica/__classes/class.Gallery.php on line 70
Notice: Undefined index: 7 in /var/www/html/piaskownica/__classes/class.Gallery.php on line 70

Pozdrawiam

Ten post edytował MitS 23.03.2007, 14:05:31

[nospor]

najpierw tworzysz wlasciowci o nazwach: nazwa
a potem odwolujesz sie do $this->_nazwa
CZemu dodajesz jescze _ ?