Файл: code.php
Строк: 52
<?php
session_start();
$_SESSION['code'] = (string)substr(str_shuffle('QWERTYUIPASDFGHJKLZXCVBNM123456789'),rand(0,30),4);
$thiz = imagecreate(72, 30); // Размер изображения
imagecolortransparent($thiz, imagecolorallocate($thiz, 0xff, 0xff, 0xff)); // Прозрачный фон
function imagekub($thiz, $size, $i1, $niz1, $chr = NULL) {
$color1 = imagecolorallocate($thiz,($l1 = rand (150,200)),($l2 = rand(150,200)),($l3 = rand(150,200)));
$color2 = imagecolorallocate($thiz,($l1-50),($l2-50),($l3-50));
$color3 = imagecolorallocate($thiz,($l1-100), ($l2-100),($l3-100));
$color4 = imagecolorallocate($thiz,($l1+55), ($l2+55),($l3+55));
$niz3 = $niz1;
$niz2 = ($niz1 + ($b = (12 + $size)));
$i2 = $i1 + (12 + $size);
do {
imageline($thiz, $i2, (++$niz3), $i1, $niz3, $color2); --$b;
}
while($b > 1);
imageline($thiz,$i2,$niz1,$i1,$niz1,$color1);
imageline($thiz,$i1,$niz2,$i1,$niz1,$color1);
imageline($thiz,$i2,$niz1,$i2,$niz2,$color3);
imageline($thiz,$i2,$niz2,$i1,$niz2,$color3);
if ($chr !== NULL) {
imagechar($thiz,$size,$i1+5,($niz1+ ($size<1?4:($size<2?3:2))),$chr,$color3);
imagechar($thiz,$size,$i1+4,($niz1+ ($size<1?3:($size<2?2:1))),$chr,$color4);
}
return;
}
for($i = 0; $i < 20; ++$i) imagekub($thiz,rand(0,2),rand(0,56),rand (0,14),'?');
$o=-1;
for($i = 1; $i <= 57; $i += 18) imagekub($thiz,rand(2,4),$i,rand(0,14),substr ($_SESSION['code'],(++$o)));
ob_start();
imagegif($thiz);
imagedestroy($thiz);
header("Content-Type: image/gif");
header('Content-Disposition: inline; filename=code.gif');
header('Content-Length: ' . ob_get_length());
ob_end_flush();
?>