Join multiple PNG Images into a single one PNG using PHP

Question

I´m trying to make custom sprites based on my own PNGs using PHP, but I got two problems:

1. Output Image it´s a collection of stacked PNGs... in

Answer 1

After one hour trying to do the Job using only PHP GD I decided to give a chance to this Library called "ImageWorkshop" which is accessible from here:

http://phpimageworkshop.com/

The result is AWESOME, with less of 10 lines of code I solve the situation. Here is How:

(Obviously, first you have to download ImageWorkshop)

NOTE: I will use a little bit descriptive code to ensure everybody understanding :)

require_once('libs/PHPImageWorkshop/ImageWorkshop.php');

/*The Empty Layer have 100x100... And is TRANSPARENT!!*/ 
$emptyLayer = ImageWorkshop::initVirginLayer(100, 100); 

$cut = ImageWorkshop::initFromPath(__DIR__ . '/icons/copy.png');
$copy = ImageWorkshop::initFromPath(__DIR__ . '/icons/cut.png');

/*Set the position of "cut" and "copy" icons inside the emptyLayer*/
$emptyLayer->addLayerOnTop($cut, 20, 10, 'LT');
$emptyLayer->addLayerOnTop($copy, 20, 30, 'LT');

// Saving the result
$dirPath = __DIR__ . "/icons/";
$filename = "output.png";
$createFolders = true; //will create the folder if not exist
$backgroundColor = null; // transparent, only for PNG (otherwise it will be white if set null)
$imageQuality = 100; // useless for GIF, usefull for PNG and JPEG (0 to 100%)

$emptyLayer->save($dirPath, $filename, $createFolders, $backgroundColor, $imageQuality);

Thats all!

By the way this small Library uses the PHP GD library.