[StickMan]

Hi, i am farely new to php and i am trying to create a script so my users can upload their photos onto my server into there directory (which will be their username) and add a watermark on the bottom right corner. i found this code on a site earlier but i do not know how to use it. here is the code

PHP Code:

function makeImage() {

global $submitimage,$imagefile,$pos,$smallimage,$largeimage,$error_message_l,$alt_text,$desc_text;

$image_info = getimagesize ($imagefile);

$image_type = $image_info[2];

if (isset($submitimage) && $imagefile != "none" && $image_type == 2) {

// START MySQL INSERT & GET ID

$sql = "INSERT INTO page_images VALUES('','','','$desc_text','$alt_text',NOW())";

mysql_query($sql) or die (mysql_error());

$image_id = mysql_insert_id();



// GET SOURCE PICTURE FROM FORM INPUT

$b = imagecreatefromjpeg($imagefile) or die ("Could not create from JPEG");

$bx = imagesx($b); // source width

$by = imagesy($b); // source height



// CREATE & RESIZE LARGE IMAGE 

if ($bx > 499 || $by > 499) { // only resize to large if original is bigger than source

if ($bx > $by) { // if landscape

$lmx = 500; // new image width

$lmy = intval($lmx * $by / $bx); // new img height

} else if ($by > $bx) { // if portrait

$lmy = 500; // new image height

$lmx = intval($lmy * $bx / $by); // new img width 

}

$lm = ImageResize($b,$lmx,$lmy) or die ("Could not resize large image");

// ADD WATERMARK

if ($pos == "topleft") {

$src_x = 0;

$src_y = 0;

} else if ($pos == "topright") {

$src_x = $lmx - 193;

$src_y = 0;

} else if ($pos == "bottomleft") {

$src_x = 0;

$src_y = $lmy - 187;

} else if ($pos == "bottomright") {

$src_x = $lmx - 193;

$src_y = $lmy - 187;

}

// THIS IS THE CODE FOR THE WATERMARK

ImageAlphaBlending($lm, true) or die ("Could not alpha blend"); // Enable when on GD 2+

$logoImage = ImageCreateFromPNG('../images/page_images/watermark.png');

$logoW = ImageSX($logoImage);

$logoH = ImageSY($logoImage);

ImageCopy($lm,$logoImage,$src_x,$src_y,0,0,$logoW,$logoH); 



// CREATE & SAVE LARGE IMAGE

$image_l = "page_image$image_id" . ".jpg";

imagejpeg($lm,"../images/page_images/$image_l",75) or die ("Could not imageJpeg"); 

imageDestroy($lm);

$largeimage = "<img src=\"../images/page_images/$image_l\" width=\"$lmx\" height=\"$lmy\" alt=\"$alt_text\">";

}

// UPDATE DATABASE WITH NEW IMAGE FILE NAMES

$sql = "UPDATE page_images SET image_file_s = '$image_s', image_file_l = '$image_l' WHERE image_id = '$image_id'";

mysql_query($sql) or die (mysql_error());

}

} 

will this do what i want? thank you

-stickman

edit: and if a user wants to upload a gif file, will it still watermark it?

[StickMan]

Hi, i found this upload script http://www.vezine.net/article/7/1

how could i incorparate the watermarking from the other script into this one?

[Bonzo]

Somethings to think about before getting to far ahead :

Dose your host have GD or ImageMagick installed.

Is Safe Mode on.

Something else I cant remenber the name TrueFonts or something installed.

Terrible the old memory is going.

Anthony

P.S. I would stick to jpg for now as it makes things a lot easyer

P.P.S. I think the original code is way to complicated for what you want

[StickMan]

Thanks for replying

My host has GD2 and if your talking about TrueType, I have that too.

I dont really know what you mean by safemode?

I was also thinking about the gif thing and i just decided to only allow jpgs and pngs(?)

Thanks!

[Bonzo]

Safe mode I found yesterday stops my method of doing things with ImageMagick but GD still works.

http://snipe.net/geek/toolz/ has some examples of what you want and a below is an upload bit of code ( I found somewhere ); you should be able to just tack the two bits together. Bed time for me now PM me if you still have problems.

Anthony

PHP Code:

// Image upload bit START

    

    if ($_FILES['image']['name'] == "") {

    #there's no file name return an error

    echo "Please select a file to upload!\n";

    exit;    }



    $uploads = "temp/";

    $types_array = array("image/pjpeg");



    if (!in_array($_FILES['image']['type'], $types_array)) {

    #the type of the file is not in the list we want to allow

    echo "That file type is not allowed!\n";

    exit;      }



    $max_filesize = 102400;



    if ($_FILES['image']['size'] > $max_filesize) {

    #file is too large

    }



move_uploaded_file($_FILES['image']['tmp_name'], "".$uploads."/".$_FILES['image']['name']) or die ("Couldn't upload file!"); 

[php~pro]

RE: the original code.

Write standard file upload then run the file through this function.
Alter you database queries and aim your upload form at it.

//edit to suit table
$sql = "INSERT INTO page_images VALUES('','','','$desc_text','$alt_text',NOW())";

//edit to suit table
$sql = "UPDATE page_images SET image_file_s = '$image_s', image_file_l = '$image_l' WHERE image_id = '$image_id'";


and edit filepaths to suit you site directory.

Easy code to use.

[infinitylimit]

<scrambles through files> I have a bunch of image functions somewhere... hmmm

Here is the pseudo-code:

Grab POST data (your file)
Make sure it's a file on your server
Move that file to a directory
Read in the entire contents of the file (via GD)
read in the entire contents of the watermark (via GD)
Use ImageCreateTrueColor to make a new image
Fille it with date from the original file
Use ImageCopyResize and copy the watermark over
Write entrie contents to original file.


So yeah there is the idea behind it. You can learn about files at www.php.net/files and you can learn about images at www.php.net/image

So take it from there Sam.