activatiecode
//////////////// CODE.PHP ////////////////
Code (php)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
<?php
session_start();
$tekens = 'AbCDeFgHiJklmNoPQrStUvWXyZ1234567890';
$code = '';
for ($i=0; $i<3; $i++)
{
$code .= $tekens {rand (0, strlen ($tekens) - 1)};
}
$_SESSION["auth_code"] = $code;
header("Content-type: image/png");
$image = imagecreatetruecolor(90, 50);
$back = imagecolorallocate($image, 212, 238, 255);
$black = imagecolorallocate($image, 0, 0, 0);
$red = imagecolorallocate($image, 255, 0, 0);
imagefill($image, 0, 0, $back);
imagerectangle($image, 0, 0, 89, 49, $black);
for ($i = 0; $i <= 50; $i+=5)
imageline($image, mt_rand($i,$i+40), 0, mt_rand($i,$i+40), 50, $black);
for ($i = 0; $i <= 90; $i+=5)
imageline($image, 0, mt_rand($i,$i+30), 90, mt_rand($i,$i+30), $black);
imagettftext($image, 20, rand(-20, 20), 15, 30, $red, "codefont.ttf", $code);
imagepng($image);
imagedestroy($image);
?>
session_start();
$tekens = 'AbCDeFgHiJklmNoPQrStUvWXyZ1234567890';
$code = '';
for ($i=0; $i<3; $i++)
{
$code .= $tekens {rand (0, strlen ($tekens) - 1)};
}
$_SESSION["auth_code"] = $code;
header("Content-type: image/png");
$image = imagecreatetruecolor(90, 50);
$back = imagecolorallocate($image, 212, 238, 255);
$black = imagecolorallocate($image, 0, 0, 0);
$red = imagecolorallocate($image, 255, 0, 0);
imagefill($image, 0, 0, $back);
imagerectangle($image, 0, 0, 89, 49, $black);
for ($i = 0; $i <= 50; $i+=5)
imageline($image, mt_rand($i,$i+40), 0, mt_rand($i,$i+40), 50, $black);
for ($i = 0; $i <= 90; $i+=5)
imageline($image, 0, mt_rand($i,$i+30), 90, mt_rand($i,$i+30), $black);
imagettftext($image, 20, rand(-20, 20), 15, 30, $red, "codefont.ttf", $code);
imagepng($image);
imagedestroy($image);
?>
//////////////// TESTFORM.PHP ////////////////
Code (php)
1
2
3
4
5
6
7
8
9
10
11
12
13
2
3
4
5
6
7
8
9
10
11
12
13
<?php
if($_SERVER["REQUEST_METHOD"] == "POST") {
session_start();
if($_SESSION["auth_code"] == $_POST["code"])
echo "Code goed!";
else
echo "Code fout!";
}
?>
<form method="post" action="<?php echo $_SERVER["PHP_SELF"] ?>">
<img src="code.php"><br>
Code: <input type="text" name="code" size=5><input type="submit" value="Zend!">
</form>
if($_SERVER["REQUEST_METHOD"] == "POST") {
session_start();
if($_SESSION["auth_code"] == $_POST["code"])
echo "Code goed!";
else
echo "Code fout!";
}
?>
<form method="post" action="<?php echo $_SERVER["PHP_SELF"] ?>">
<img src="code.php"><br>
Code: <input type="text" name="code" size=5><input type="submit" value="Zend!">
</form>