<?php

$height = 300;

$width = 300;

$im = ImageCreateTrueColor($width, $height);

$white = ImageColorAllocate ($im, 255, 255, 255);

$blue = ImageColorAllocate ($im, 0, 0, 64);

ImageFill($im, 0, 0, $blue);

ImageLine($im, 0, 0, $width, $height, $white);

ImageString($im, 4, 80, 150, PHP, $white);

Header ("Content-type: image/png");

ImagePng ($im);

ImageDestroy($im);

?>