[Deansatch]

I don't know if this will be the best place to post this since it may be client side I am after.

I am trying to find a way of getting the file information e.g. size, dimensions from an image file before uploading to the server.

The only thing I have come across that seems to do this is uber upload but it is a bit too much overkill (too many features). Surely there is a simple way of getting the files attached information to post to my php script before it starts uploading the image.

Reason being, I don't want people to accidentally upload an image that is too large, wait a few minutes only to get the "file too large" message at the end. I want them to get the message before the image starts uploading. Input field max_file_size doesn't work anymore.

Does anyone know what part of uber upload is responsible for getting the filesize info when you click on upload? Is it php, java, javascript???

[Jay6390]

You're right, it is client side not server side (php). I'm guessing there will be a way with either a java applet or java script, although I'm not 100%

Take a look here for upload applets
http://www.hotscripts.com/Java/Apple...ent/index.html

[End User]

If you're certain the file is an image then you can check image sizes (not file sizes). Some untested javascript code I found via Teh Google:

Code:

var imOK = false;
var im

function fromOnChange() {
  im = new Image();
  im.src = document.myForm.myFile.value;
  imOK = false;
  im.onload=checkSize
  im.onerror=imError
}

function imError() {
  imOK = false;  
}

function checkSize() {
  if(im) {
       if(im.width < 100 ) {
          if(im.height < 100 ) {
             imOK = true;
             return;
          }
       }
  }
  imOK = false;
}

[Deansatch]

Thanks for that. But since it's javascript, how do I integrate that into my script?

[End User]

Originally Posted by Deansatch

Thanks for that. But since it's javascript, how do I integrate that into my script?

I don't know, I can't see your script from here. If you would post your script so we could see it then we'll have a look.

[davestar057]

PHP Code:

if (isset($_POST['submitted'])) {



    // Check for an uploaded file.

    if (isset($_FILES['upload'])) {

        

        // Validate the type. Should be jpeg, jpg, or gif.

        $allowed = array ('image/gif', 'image/jpeg', 'image/jpg', 'image/pjpeg');

        if (in_array($_FILES['upload']['type'], $allowed)) {

        

            // Move the file over.

            if (move_uploaded_file($_FILES['upload']['tmp_name'], "uploads/{$_FILES['upload']['name']}")) {

            

                echo '<p>The file has been uploaded!</p>';

            

            } else { // Couldn't move the file over.

            

                echo '<p><font color="red">The file could not be uploaded because: </b>';

        

                // Print a message based upon the error.

                switch ($_FILES['upload']['error']) {

                    case 1:

                        print 'The file exceeds the upload_max_filesize setting in php.ini.';

                        break;

                    case 2:

                        print 'The file exceeds the MAX_FILE_SIZE setting in the HTML form.';

                        break;

                    case 3:

                        print 'The file was only partially uploaded.';

                        break;

                    case 4:

                        print 'No file was uploaded.';

                        break;

                    case 6:

                        print 'No temporary folder was available.';

                        break;

                    default:

                        print 'A system error occurred.';

                        break;

                } // End of switch.

                

                print '</b></font></p>';



            } // End of move... IF.

            

        } else { // Invalid type.

            echo '<p><font color="red">Please upload a JPEG or GIF image.</font></p>';

            unlink ($_FILES['upload']['tmp_name']); // Delete the file.

        }



    } else { // No file uploaded.

        echo '<p><font color="red">Please upload a JPEG or GIF image smaller than 512KB.</font></p>';

    }

            

} // End of the submitted conditional.

?>

    

<form enctype="multipart/form-data" action="upload_image.php" method="post">



    <input type="hidden" name="MAX_FILE_SIZE" value="524288">

    

    <fieldset><legend>Select a JPEG or GIF image to be uploaded:</legend>

    

    <p><b>File:</b> <input type="file" name="upload" /></p>

    

    </fieldset>

    <div align="center"><input type="submit" name="submit" value="Submit" /></div>

    <input type="hidden" name="submitted" value="TRUE" />

</form>

</body>

</html>