Ok, thanks for those two lines for debugging. They helped me to know the problem was the $rootPath variable. Now, if you see the number is displayed, however the background is displayed in black color making the number very difficult to see. However, I do not understand why this just happens remotely and not locally.
<?php
$fontDir = "fonts/";
$fn = (isset($_GET['fn'])) ? $_GET['fn'] : "arial.ttf";
$fs = (isset($_GET['fs'])) ? $_GET['fs'] : 10;
$maxWidth = 80 * $fs;
$colorArray = array ("red", "green", "blue", "cyan", "magenta", "yellow", "black", "white", "gray");
// $colorArray = array ("black", "black", "black", "black", "black", "black", "black", "black", "black");
$color = (isset($_GET['color'])) ? $colorArray[$_GET['color']] : $colorArray[rand(0, ];
$txt = (isset($_GET['txt'])) ? $_GET['txt'] : "0000000";
$coords = imagettfbbox($fs, 0, $fontDir . $fn, $txt);
$w = abs($coords[4]) + 8;
$h = abs($coords[5]) + 8;
$img = imagecreatetruecolor($w, $h);
$red = imagecolorallocate($img, 255,0,0);
$green = imagecolorallocate($img, 0,255,0);
$blue = imagecolorallocate($img, 0,0,255);
$cyan = imagecolorallocate($img, 0,255,255);
$magenta = imagecolorallocate($img, 255,0,255);
$yellow = imagecolorallocate($img, 255,255,0);
$black = imagecolorallocate($img, 0,0,0);
$white = imagecolorallocate($img, 255,255,255);
$gray = imagecolorallocate($img, 127,127,127);
$fill = ($color == "white") ? $black : $white;
imagefill($img, 0, 0, $fill);
$position = 4;
if (isset($_GET['position'])) $position = $_GET['position'];
imagettftext($img, $fs, 0, 0, $h-$position, $$color, "$fontDir$fn", $txt);
header("content-type: image/jpeg");
imagejpeg($img, "", 100);
imagedestroy($img);
?>
Thanks