View file img.php

<?php
//Сессия
session_name('reg');
session_start();
$s=htmlspecialchars(session_id());

if(!@$_SESSION['kod'])
	{
	$_SESSION['kod']=rand(1,99999);
	}
	$kod=$_SESSION['kod'];
$img=imageCreate(60, 30);
imagecolorallocate($img, 255, 255, 255) ;
$black = imageColorAllocate($img, 0, 0,0);
imageString($img,5,0,0,$kod,$black);

Header("Content-type: image/gif");
imagegif($img);
?>