Convert this to a function

Hi,

I want to convert this into a function. How would i go about doing this?

$path_thumbs = "images/thumbs";
$path_big = "images/big";

//the new width of the resized image.
$img_thumb_width = 150; // in pixcel

$extlimit = "yes"; //Do you want to limit the extensions of files uploaded (yes/no)
//allowed Extensions
$limitedext = array(".gif",".jpg",".png",".jpeg",".bmp");


//check if folders are Writable or not
//please CHOMD them 777
if (!is_writeable($path_thumbs)){
   die ("Error: The directory <b>($path_thumbs)</b> is NOT writable");
}
if (!is_writeable($path_big)){
    die ("Error: The directory <b>($path_big)</b> is NOT writable");
}

//if the for has submittedd
if ($_POST){

       $file_type = $_FILES['image']['type'];
       $file_name = $_FILES['image']['name'];
       $file_size = $_FILES['image']['size'];
       $file_tmp = $_FILES['image']['tmp_name'];

       //check if you have selected a file.
       if(!is_uploaded_file($file_tmp)){
          echo "Error: Please select a file to upload!. <br>--<a href=\"$_SERVER[PHP_SELF]\">back</a>";
          exit(); //exit the script and don't do anything else.
       }
       //check file extension
       $ext = strrchr($file_name,'.');
       $ext = strtolower($ext);
       if (($extlimit == "yes") && (!in_array($ext,$limitedext))) {
          echo "Wrong file extension.  <br>--<a href=\"$_SERVER[PHP_SELF]\">back</a>";
          exit();
       }
       //get the file extension.
       $getExt = explode ('.', $file_name);
       $file_ext = $getExt[count($getExt)-1];

       //create a random file name
       $rand_name = md5(time());
       $rand_name= rand(0,999999999);
       //get the new width variable.
       $ThumbWidth = $img_thumb_width;

       //keep image type
       if($file_size){
          if($file_type == "image/pjpeg" || $file_type == "image/jpeg"){
               $new_img = imagecreatefromjpeg($file_tmp);
           }elseif($file_type == "image/x-png" || $file_type == "image/png"){
               $new_img = imagecreatefrompng($file_tmp);
           }elseif($file_type == "image/gif"){
               $new_img = imagecreatefromgif($file_tmp);
           }
           //list width and height and keep height ratio.
           list($width, $height) = getimagesize($file_tmp);
           $imgratio=$width/$height;
           if ($imgratio>1){
              $newwidth = $ThumbWidth;
              $newheight = $ThumbWidth/$imgratio;
           }else{
                 $newheight = $ThumbWidth;
                 $newwidth = $ThumbWidth*$imgratio;
           }
           //function for resize image.
           if (function_exists(imagecreatetruecolor)){
           $resized_img = imagecreatetruecolor($newwidth,$newheight);
           }else{
                 die("Error: Please make sure you have GD library ver 2+");
           }
           imagecopyresized($resized_img, $new_img, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
           //save image
           ImageJpeg ($resized_img,"$path_thumbs/$rand_name.$file_ext");
           ImageDestroy ($resized_img);
           ImageDestroy ($new_img);
           //print message
        }

        //upload the big image
        move_uploaded_file ($file_tmp, "$path_big/$rand_name.$file_ext");
			
	$imagename = "$rand_name.$file_ext";

Code (markup):

Cheers,
Adam

 

Ok. I would first start out by putting together a list of arguments. Then I would compile them into the function like so.

function imagefunction (arg 1, arg 2)
{

}

PHP:

Then just take and switch up your variables to match the arguments and then decide what you want to return. Probably in your case the filename on success of move_uploaded_file and FALSE on failure.

 

is the problem solved or still having problems buddy

Regards

Alex

 

Hi,

I am still having problems with converting this into a class yes.

If you could give me a hand i would be grateful.

Adam

 

A function or a class? It's not the same, you know.

 

Sorry i am not that clear am i, i would like this to be converted into a class please.

 

Why re-invent the wheel?

There are so many functions/classes for file/image uploads. You should build on it instead.

Peace,