<?php
declare(strict_types=1);

$image = imagecreatetruecolor(8, 2);
$red = imagecolorallocate($image, 255, 0, 0);
$blue = imagecolorallocate($image, 0, 0, 255);
imagesetstyle($image, [$red, $red, $blue, $blue]);
imageline($image, 0, 0, 7, 0, IMG_COLOR_STYLED);
$pixel = imagecolorsforindex($image, imagecolorat($image, 2, 0));
echo $pixel["red"], ",", $pixel["green"], ",", $pixel["blue"], "\n";
