Avatar

if($sentry->user["avatar"] != ""){
    $content .= '<p>Je huidige avatar: <br /><img src="'.$sentry->user["avatar"].'" alt="avatar"/></p>';
    }
    
        $form->set("title", "Verander je avatar!");
        $form->set("validator","includes/validator.class.php");
        $form->set("validatorClass","Validator");
        $form->set('enctype','multipart/form-data');
        $form->set("submitMessage", "Je avatar is veranderd!"); // GEEN SUBMIT MESSAGE
        $form->set("showAfterSuccess",true);
        $form->set("errorlabel","errors_url");
        
        // ADDFIELD( TYPE , ID , LABEL, STERRETJE, VALUE)
        $form->addText("Je moet een van de twee vakjes invullen!");
        $form->addField("text", "url","De url:", false, "");
        $form->addField("file", "bestand","Bestand selecteren", false, ""); 
        $form->addField("hidden","MAX_FILE_SIZE","filesize",false,"51200");
        $form->addField("submit", "submit","", false, "Verander!");


        $content .= $form->display();        


        // RESULTAAT VAN HET FORMULIER
        // ENKEL INGEVULD WANNEER FORMULIER HELEMAAL JUIST IS INGEVULD
        $result    = ($form->getData());


        //Hier valideren omdat dan pas de juiste gegevens er zijn
        $form->vergelijk("url",$_FILES['bestand']['name'],"avatar_check");
        unset($form);    


        if($result)
        {
            
            if(empty($result['url']))
            {
                $soort    = 'bestand';
                $url    = $_FILES['bestand']['name'];
                $tmp    = $_FILES['bestand']['tmp_name'];
                
            }
            
            else
            {
                $soort     = 'url';
                $url    = $result['url'];
                $tmp    = false;
            }
            
            $user->loadUser();
            if(!$user->changeAvatar($soort,$url,$tmp))
            {
                $content = 'Er is een fout opgetreden bij het veranderen van je avatar!';
            }
            
            else
            {
                $user->saveAvatar();
                $content = 'Je avatar is succesvol veranderd!';
            
            }
            
        }

//Functie voor het veranderen van de avatar.
    public function changeAvatar($soort,$url,$tmp)
    {
        $sql        = $this->sql;    
        
        if($soort == 'url')
        {
            if(!preg_match("/^(https?:\/\/)?([\da-z\.-]+)\.([a-z\.]{2,6})([\/\w \.-]*)*\/?$/",$url))return false;
            
            return $this->database->query("UPDATE users SET avatar='".$url."' WHERE id ='".$this->id."' LIMIT 1 ");
        }
        
        elseif($soort == 'bestand')
        {
            $allow    = array("png","jpg");
            
            $extensie    = substr($url, -3);
            if(!in_array($extensie,$allow))return false;
            
             if (is_uploaded_file($tmp)) 
             {  
                  move_uploaded_file($tmp, "./game/images/uploads/$this->id.$extensie");  
      
      $url    = "game/images/uploads/$this->id.$extensie";
      $url2    = "./game/images/uploads/$this->id.$extensie";      
      // RESIZE
      // **********************************
      
      $twidth = "250";   // Maximum Width For Thumbnail Images
      $theight = "150";   // Maximum Height For Thumbnail Images 


      if($extensie == "jpg"){
      $simg = imagecreatefromjpeg("" . $url2);   // Make A New Temporary Image To Create The Thumbanil From
      }else{
      $simg = imagecreatefrompng("" . $url2);   // Make A New Temporary Image To Create The Thumbanil From
      }
      $currwidth = imagesx($simg);   // Current Image Width
      $currheight = imagesy($simg);   // Current Image Height 
      
      if ($currheight > $currwidth) {   // If Height Is Greater Than Width
         $zoom = $twidth / $currheight;   // Length Ratio For Width
         $newheight = $theight;   // Height Is Equal To Max Height
         $newwidth = $currwidth * $zoom;   // Creates The New Width
      } else {    // Otherwise, Assume Width Is Greater Than Height (Will Produce Same Result If Width Is Equal To Height)
        $zoom = $twidth / $currwidth;   // Length Ratio For Height
        $newwidth = $twidth;   // Width Is Equal To Max Width
        $newheight = $currheight * $zoom;   // Creates The New Height
      } 
      
      $dimg = imagecreate($newwidth, $newheight);   // Make New Image For Thumbnail
      imagetruecolortopalette($simg, false, 256);   // Create New Color Pallete
      $palsize = ImageColorsTotal($simg);
      for ($i = 0; $i < $palsize; $i++) {   // Counting Colors In The Image
       $colors = ImageColorsForIndex($simg, $i);   // Number Of Colors Used
       ImageColorAllocate($dimg, $colors['red'], $colors['green'], $colors['blue']);   // Tell The Server What Colors This Image Will Use
      }
       
      
      imagecopyresized($dimg, $simg, 0, 0, 0, 0, $newwidth, $newheight, $currwidth, $currheight);   // Copy Resized Image To The New Image (So We Can Save It)
      if($extensie == "jpg"){
      imagejpeg($dimg, "" . $url2);   // Saving The Image
      }else{
      imagepng($dimg, "" . $url2);   // Saving The Image      
      }
      imagedestroy($simg);   // Destroying The Temporary Image
      imagedestroy($dimg);   // Destroying The Other Temporary Image 
            // END OF RESIZE **********************************


                  return $this->database->query("UPDATE users SET avatar='".$url."' WHERE id ='".$this->id."' LIMIT 1 ");
             }
        }
        
        else
        {
            echo'Geen geldig soort!';    
        }
        
    }

/* het SQL gedeelte */
if(isset($_POST['avatar'])){
mysql_query("UPDATE `users` SET `avatar`='{$_POST['avatar']}'  WHERE `login`='$data->login'");
/* Einde SQL gedeelte */


/* Het avatar upload link gedeelte */
		<tr>
			<td>Avatar:</td>
			<td>
				<input type="text" name="avatar" size="27" value="<? echo$data->avatar; ?>"> <b>Wordt automatisch verkleint</b>
			</td>
		</tr>
* Einde avatar upload link gedeelte */


/* De Submit knop */
		<tr>
			<td colspan="2" align="center">
				<input type="submit" class="mod_submit" value="Wijzigingen Opslaan" name="avatar">
			</td>
		</tr>
/* Einde Submit knop */