[SOLVED] Thumbnail problem

[Yesideez]

Is it possible to have a function inside a script to generate a thumbnail of an image and display it in the browser without having to use an external script?

 

I've got a script that shows the status of the background image, here's the line of code that is trying to display the image:

  <tr><td>Image</td><td><a href="<?php echo '../uploads/images/'.$image->name; ?>" rel="lightbox" title="Background Image" <?php echo htmlentities($image->name); ?>><?php imageResize($basedir.'/../uploads/images/'.$image->name,$image->type,false,null,50); ?></a></td></tr>

 

This is the function imageResize():

function imageResize($source,$type,$target=false,$newWidth=null,$newHeight=null) {
  $result['success']=false;
  switch ($type) {
    case 'jpg':header("Content-type: image/jpg");$src=@imagecreatefromjpeg($source);break;
    case 'png':header("Content-type: image/png");$src=@imagecreatefrompng($source);break;
    case 'gif':header("Content-type: image/gif");$src=@imagecreatefromgif($source);break;
  }
  if (isset($src)) { //DID WE CREATE OUR RESOURCE?
    list($imgW,$imgH)=getimagesize($source);
    if ($newWidth==null && $newHeight==null) { //WIDTH & HEIGHT NOT SPECIFIED SO DON'T RESIZE
      $newWidth=$imgW;
      $newHeight=$imgH;
    } else if ($newHeight==null) { //CALCULATE NEW HEIGHT CONSTRAINING THE DIMENSIONS
      $newHeight=intval(($imgH/$imgW)*$newWidth);
    } else { //CALCULATE NEW WIDTH CONSTRAINING THE DIMENSIONS
      $newWidth=intval(($imgW/$imgH)*$newHeight);
    }
    $tmp=@imagecreatetruecolor($newWidth,$newHeight);
    if ($tmp) { //DID WE CREATE OUR IMAGE?
      if (@imagecopyresampled($tmp,$src,0,0,0,0,$newWidth,$newHeight,$imgW,$imgH)) { //DID WE RESIZE THE IMAGE?
        if ($target==false) {
          switch ($type) {
            case 'jpg':$img=@imagejpeg($tmp);break;
            case 'png':$img=@imagepng($tmp);break;
            case 'gif':$img=@imagegif($tmp);break;
          }
        } else {
          switch ($type) {
            case 'jpg':$img=@imagejpeg($tmp,$target,100);break;
            case 'png':$img=@imagepng($tmp,$target,0);break;
            case 'gif':$img=@imagegif($tmp,$target);break;
          }
        }
        if ($img) { //DID WE SAVE OUR NEW IMAGE?
          $result['width']=$newWidth;
          $result['height']=$newHeight;
          $result['name']=$target;
          @imagedestroy($src);
          @imagedestroy($tmp);
          $result['success']=true;
        }
      }
    }
  }
  if ($target!=false) {
    return $result;
  }
}

 

If I omit the header() statements the script works but instead of the image being shown I get the raw content of the file - as expected. How can I send the header() info so it displays?

 

I've searched everywhere for examples and all I can find are examples that work in their own files - unless I'm reading something wrong somewhere.

[Yesideez]

Forgot to mention the entire site is contained within an ob_start() at the start of each page.

 

EDIT:: Re-posted the updated code.

[PFMaBiSmAd]

I've searched everywhere for examples and all I can find are examples that work in their own files - unless I'm reading something wrong somewhere.

That's because that is the way it works. Browsers fetch media content on a page separately through the URL of that media content and for a image you need an <img src="URL_that_resutls_in_the_image_being_output_with_header" alt=""> tag in the link you are forming on the page.

[Yesideez]

Okies, thanks for the reply.

 

I'll place the function inside a file of its own and call it that way instead.

[Yesideez]

Definitely solved - thumbs working just fine