How to create a image.php (show ip +background)

<?php
$img_number = imagecreate(275,225);
$backcolor = imagecolorallocate($img_number,102,102,153);
$textcolor = imagecolorallocate($img_number,205,205,205);

imagefill($img_number,0,0,$backcolor);
$number = " Your IP is $_SERVER[REMOTE_ADDR]";

Imagestring($img_number,10,5,5,$number,$textcolor);

header("Content-type: image/jpeg");
imagejpeg($img_number);
?>

<?php
$im = imagecreatefrompng("imagetest.png");

header('Content-Type: image/png');

imagepng($im);
imagedestroy($im);
?>