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<?php
/**
* MaxSite CMS
* (c) http://max-3000.com/
*/
function _create_captha_img()
{
$width = 100;
$height = 25;
$im = @imagecreate ($width, $height) or die ("Cannot initialize new GD image stream!");
if (isset($_GET['image']) and isset($_GET['page']))
{
$char = md5($_GET['image'] . $_GET['page']);
}
else
{
die ("error");
}
$char = str_replace(array('a', 'b', 'c', 'd', 'e', 'f'), array('0', '5', '8', '3', '4', '7'), $char);
$char = substr( $char, 1, 4);
imagecolortransparent ($im, imagecolorallocate ($im, 205, 255, 255) );
// rnd
for ($i = 0; $i < strlen($char); $i++)
{
// $text_color = imagecolorallocate ($im, rand(220,255), rand(0,40), 120);
$text_color = imagecolorallocate ($im, 255, 0, 0);
$x = $width / 10 + $i * ($width / 5);
// $y = rand(0, 5);
$y = 0;
imagechar ($im, 4, $x, $y, chr(rand(49, 90)), $text_color);
}
$point_color = imagecolorallocate ($im, 255, 120, 120);
ImageLine($im, 3, 9, 150, 2, $point_color);
//output characters
for ($i = 0; $i < strlen($char); $i++) {
$text_color = imagecolorallocate ($im, rand(0,120), rand(0,180), rand(0,180));
// $x = 5 + $i * 40 + rand(-5, 5);
$x = 3 + $i * $width / 4;
//$y = rand(0, 5);
$y = 10;
imagechar ($im, 5, $x, $y, $char{$i}, $text_color);
}
//ouput PNG
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // HTTP/1.1
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache"); // HTTP/1.0
if (function_exists("imagepng"))
{
header("Content-type: image/png");
imagepng($im);
}
elseif (function_exists("imagegif"))
{
header("Content-type: image/gif");
imagegif($im);
}
elseif (function_exists("imagejpeg"))
{
header("Content-type: image/jpeg");
imagejpeg($im);
}
else
{
die("No image support in this PHP server!");
}
imagedestroy ($im);
}
_create_captha_img();
?>