using class

[ess14]

i really suck... can someone tell me how i would implement this class? what would my form look like and how do i make it all work? thanks in advance. i could learn alot from this.

[code]
<?php
class picture
{
      var $save_dir;                    //where file will be saved
      var $filename="spacer.gif";        //default file name initially
      var $error_message="";            //string to be output if neccesary
      var $width;                        //height of final image
      var $height;                      //width of final image

      function picture($save_directory, $file_array, $max_width, $max_height)
      {
              $this->save_dir = $save_directory;             
              $this->width =    $max_width;
              $this->height =  $max_height;

              //--change filename to time - make it unique
              $temp_filename = $file_array['name'];
              $ext = explode('.',$temp_filename);
              $ext = $ext[count($ext)-1];
              $temp_filename = time().".".$ext;

              //--check that it's a jpeg or gif
              if (preg_match('/^(gif|jpe?g)$/',$ext)) {
                      // resize in proportion
                      list($width_orig, $height_orig) = getimagesize($file_array['tmp_name']);
                      if ($this->width && ($width_orig < $height_orig)) {
                              $this->width = ($this->height / $height_orig) * $width_orig;
                      } else {
                              $this->height = ($this->width / $width_orig) * $height_orig;
                      }

                      $image_p = imagecreatetruecolor($this->width, $this->height);                     

                      //handle gifs and jpegs separately
                      if($ext=='gif'){
                          $image = imagecreatefromgif($file_array['tmp_name']);                         
                          imagecopyresampled($image_p, $image, 0, 0, 0, 0, $this->width, $this->height, $width_orig, $height_orig);
                          imagegif($image_p, $this->save_dir.$temp_filename, 80);
                      }
                      else
                      {
                          $image = imagecreatefromjpeg($file_array['tmp_name']);                         
                          imagecopyresampled($image_p, $image, 0, 0, 0, 0, $this->width, $this->height, $width_orig, $height_orig);                         
                          imagejpeg($image_p, $this->save_dir.$temp_filename, 80);
                      }

                      imagedestroy($image_p);
                      imagedestroy($image);

                      $this->filename=$temp_filename;

              }else{
                      $this->error_message.="<br> file is not a jpeg or gif picture <br>";
              }
      }
}
?>
[/code]


and this is my form  :(

[code]
<?php
$save_directory = "users/";
$max_width = 40;
$max_height = 40;
$fileIt = $myclass->picture($save_directory, $max_width, $max_height);
?>
</td>
  </tr>
  <tr>
    <td>&nbsp;</td>
    <td><form enctype="multipart/form-data" action="<? $fileIt; ?>" method="POST">
    <!-- MAX_FILE_SIZE must precede the file input field -->
 
    <!-- Name of input element determines name in $_FILES array -->
    Send this file: <input name="userfile" type="file" />
    <input type="submit" value="Send File" />
</form></td>
    <td>&nbsp;</td>
  </tr>
</table>
[/code]

im getting the error that its missing 4 arguments from the picture();
please tell me how stupid i am and what i can do to make this work.
thanks.

[Barand]

try
[code]
<?php
include 'picture.class.php';

if (isset($_POST['submit'])) {
    $save_directory = "users/";
    $max_width = 40;
    $max_height = 40;
   
$fileIt = new picture($save_directory, $_FILES['userfile'], $max_width, $max_height);
}
?>
</td>
  </tr>
  <tr>
    <td>&nbsp;</td>
    <td><form enctype="multipart/form-data" action="" method="POST">
    <!-- MAX_FILE_SIZE must precede the file input field -->
 
    <!-- Name of input element determines name in $_FILES array -->
    Send this file: <input name="userfile" type="file" />
    <input type="submit" value="Send File" />
</form></td>
    <td>&nbsp;</td>
  </tr>
</table>
[/code]