image upload script with watermark

hitchy · 08-12-2011, 08:58 AM

hello... first off let me just say im sorry if this is in the wrong place i found it hard to pick weather its beginner or more advanced, PLEASE move this if it is in the wrong place.

ok with that out of the way, i have been editing a php login script for a while now and have created/pieced together an image uploader which works fine, i am now trying to add a watermark script to my uploader so it saves the images to my server with a watermark already on them.

here is the uploader script taken from inside a process page.

PHP Code:


			
   function upload($subtitle){

      global $database, $form; //The database, form and mailer object

      

    $random = $this->generateRandID();

    $size = $_FILES['uploaded']['size'];

    $type = $_FILES['uploaded']['type'];

    $title = $_POST['title'];    

    $reference = $random ."-". $_FILES['uploaded']['name'];

    

    /*DATE start*/

    $time = date (DATE_RFC822);

    $tz= $this->userinfo['country'];

    $dtzone = new DateTimeZone($tz);

    $dtime= new DateTime ($time,$dtzone);

    $date=$dtime->format ('U');



        /*DATE end*/









    

      /* Name error checking */

      $field = "title";

      if(!$subtitle || strlen($subtitle = trim($subtitle)) == 0){

         $form->setError($field, "* Name not entered");

      } else {

         $subtitle = stripslashes($subtitle);

      }

      

      

        $field = "uploaded";

$allowed_types = array('image/gif','image/pjpeg','image/jpeg','image/PJPEG','image/JPEG','image/jpg','image/JPG','image/x-png');



if(!in_array($type, $allowed_types))

 { 

 $form->setError($field, "invalid file type"); 

 } else {

 if ($size > 307200)

{$form->setError($field, "Your file is to big, needs top be smaller"); 

 } }





      



      

      

      /* Errors exist, have user correct them */

      if($form->num_errors > 0){

         return 1;  //Errors with form

      }

      /* No errors, add the new account to the */

      else{

      $target = "user_images";

    if(!is_dir($target)) @mkdir($target);

    $target = $target ."/". $_SESSION['username'];

    if(!is_dir($target)) @mkdir($target);

    $target = $target ."/". 'pics';    

    if(!is_dir($target)) @mkdir($target);

    

$target = $target."/". $random ."-".basename($_FILES['uploaded']['name']) ;



$target2 = "user_images";

    $target2 = $target2 ."/". $_SESSION['username'];

        $target2 = $target2 . '/pics';

        $target2 = $target2 . '/thumbs';

        if(!is_dir($target2)) @mkdir($target2);

        $target2 = $target2."/". $random ."-".basename($_FILES['uploaded']['name']) ;

        



 function createthumb($name,$filename,$new_w,$new_h)

{

$system=explode(".",$name);

if (preg_match("/JPG|JPEG|jpg|jpeg/",$system[1])){$src_img=imagecreatefromjpeg($name);}

if (preg_match("/png|PNG/",$system[1])){$src_img=imagecreatefrompng($name);}

if (preg_match("/gif|GIF/",$system[1])){$src_img=imagecreatefromgif($name);}



$old_x=imageSX($src_img);

$old_y=imageSY($src_img);

if ($old_x > $old_y) 

{

$thumb_w=$new_w;

$thumb_h=$old_y*($new_h/$old_x);

}

if ($old_x < $old_y) 

{

$thumb_w=$old_x*($new_w/$old_y);

$thumb_h=$new_h;

}

if ($old_x == $old_y) 

{

$thumb_w=$new_w;

$thumb_h=$new_h;

}

$dst_img=ImageCreateTrueColor($thumb_w,$thumb_h);

imagecopyresampled($dst_img,$src_img,0,0,0,0,$thumb_w,$thumb_h,$old_x,$old_y); 



if     (preg_match("/png/",$system[1])){imagepng($dst_img,$filename);} 

if    (preg_match("/gif/",$system[1])){imagegif($dst_img,$filename);} 

else     {imagejpeg($dst_img,$filename);}

    

    // Clear the memory of the temporary image 

    imagedestroy($dst_img);

    imagedestroy($src_img);  

}

 //Writes the photo to the server 

 



 if(move_uploaded_file($_FILES['uploaded']['tmp_name'], $target))  { 

  }

$target2 = "user_images";

    $target2 = $target2 ."/". $_SESSION['username'];

        $target2 = $target2 . '/pics';

        $target2 = $target2 . '/thumbs';

        if(!is_dir($target2)) @mkdir($target2);

        $target2 = $target2."/".basename($random ."-".$_FILES['uploaded']['name']) ;

        createthumb($target,$target2,200,200);

           

      

         if($database->addUpload($subuser, $size, $subtitle, $type, $reference, $date)){

            

            return 0;  //New user added succesfully

         }else{

            return 2;  //Registration attempt failed

         }

      } 

   }

the script checks the title field has something in and checks the type and size of the image ($uploaded), then it creates the folder system i want and uploads the image as well as creating a thumbnail and saving that to its own folder.

all the tutorials i have seen for adding a watermark to an image either add the watermark as the image is viewed (not saving the watermark on the image) or they work in a way that i cant get to work with my script above.

i have a watermark script working

PHP Code:


			
$image_uploaded = $reference;

$image_uploaded_temp = $_FILES['uploaded']['tmp_name'];\



move_uploaded_file ($image_uploaded_temp, "images/$image_uploaded");



function watermarkImage($location)

{

$watermark = imagecreatefrompng("watermark.png");

$watermark_height = imagesy($watermark);

$watermark_width = imagesx($watermark);

$image = imagecreatetruecolor($watermark_width, $watermark_height);

$image = imagecreatefromjpeg($location);

$size = getimagesize($location);

$x_pos = $size[0] - $watermark_width - 10;

$y_pos = $size[1] - $watermark_height - 10;

imagecopymerge($image, $watermark, $x_pos, $y_pos, 0, 0, $watermark_width, $watermark_height, 100);

imagejpeg($image, $location);

imagedestroy($image);

imagedestroy($watermark);

}

watermarkImage("images/$image_uploaded");

but i am unable to combine the 2 scripts to get it to work

please is there anyone that can help?
cheers

p.s i know my script isnt the easiest to follow and its most likely not the best way to do it either but thats ok for now.