create_avatar.php

<?php

function make_avatar($character, $id)
{
   $path = 'img/avatars/' . $id . '.jpg';

   $image = imagecreate(200, 200);

   $red = rand(0, 255);

   $green = rand(0, 255);

   $blue = rand(0, 255);

   imagecolorallocate($image, $red, $green, $blue);

   $textcolor = imagecolorallocate($image, 255, 255, 255);

   imagettftext($image, 100, 0, 55, 150, $textcolor, 'fonts/Roboto-Regular.ttf', $character);

   header('Content-type: image/jpg');

   imagepng($image, $path);

   imagedestroy($image);

   return $path;
}

?>