Question

I have this image function that I have a litte problem with

function BuildCustomBricks($myBricksAndRatios) {

        $img = imagecreate(890,502);
        imagealphablending($img, true);
        imagesavealpha($img, true);

        foreach ($this->shuffle_with_keys($myBricksAndRatios) as $key) {            

            $bricks_to_choose = rand(1,10);

            $cur = imagecreatefrompng("/var/www/brickmixer/bricks/". $key."-".$bricks_to_choose.".png"); 
            imagealphablending($cur, true);
            imagesavealpha($cur, true);
            imagecopy($img, $cur, 0, 0, 0, 0, 125, 32);

            imagedestroy($cur);
        }

        header('Content-Type: image/png');
        imagepng($img);
    }

How can place each image in the foreach 100 pixels from the previous one?

next image in the loop:    
imagecopy($img, $cur, previous_x_coord+100, 0, 0, 0, 125, 32);

Answer 1

Just store a variable which starts at zero and adds 100 at the end of every loop iteration:

    // Init at zero
    $coords = 0;
    foreach ($this->shuffle_with_keys($myBricksAndRatios) as $key) {            


        $bricks_to_choose = rand(1,10);

        $cur = imagecreatefrompng("/var/www/brickmixer/bricks/". $key."-".$bricks_to_choose.".png"); 
        imagealphablending($cur, true);
        imagesavealpha($cur, true);
        // Use the variable here
        imagecopy($img, $cur, $coords, 0, 0, 0, 125, 32);

        imagedestroy($cur);

        // Add 100 at the end of the loop block
        $coords += 100;
    }