Text To Image Using PHP

<?php
/* NOTE: This code assumes that you have the GD 2 Library installed on your php server and that all goes well.
It does not contain any error handling.
*/
    	header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
    	header("Cache-Control: no-cache");
    	// dont cache
    	header("Pragma: no-cache");
    	// dont cache again, for whatever reason, I forget.
    	// Above headers are to prevent cache of
    	// the image so that changes will be seen immediately.
    	header("Content-Type: image/jpeg");
    	// Specify that we are outputting a jpeg image.
    	$padding = 5;
    	// Padding: Distance from edges of image to text. Much like the padding property in CSS
    	$font = 5;
    	// Define The Font. Can be integers 1 through 5 or can be imageloadfont(imagefont.gdf).
    	// Must Be A PHP Font (*.gdf) for this script to work properly.
    	$text = "my-email@hotmail.com";
    	// Define The Text On The Image
    	$height = imagefontheight($font) + ($padding * 2);
    	// Sets Height Of Image
    	$width = imagefontwidth($font) * strlen($text) + ($padding * 2);
    	// Sets Width Of Image (Adjusted for font size);
    	$image_handle = imagecreatetruecolor($width, $height);
    	// Initializes The Image Object
    	$text_color = imagecolorallocate($image_handle, 0, 0, 0);
    	// Sets The Forecolor to Black (rgb: 0-0-0)
    	$background_color = imagecolorallocate($image_handle, 255, 255, 255);
    	// Sets The Backcolor to white (rgb: 255-255-255)
    	$bg_height = imagesy($image_handle);
    	// Sets the background Y2 position
    	$bg_width = imagesx($image_handle);
    	// Sets The Background X2 Position
    	imagefilledrectangle($image_handle, 0, 0, $bg_width, $bg_height, $background_color);
    	// Draws a background (filled rectangle) over the entire span of the image.
    	imagestring($image_handle, $font, $padding, $padding, $text, $text_color);
    	// Draw the text onto the foreground of the image.
    	// php draws from back to front so the rectangle comes first.
    	imagejpeg($image_handle,NULL,100);
    	// Output the image. filename value of NULL tells GD to output to the client
    	// as opposed to writing to a file. enter a file name to output to a file.
    	// qality value of 100 tells php to output the best possible quality jpeg as possible
    	// quality values are from 1 to 100
    	imagedestroy($image_handle);
?>