note 69484 added to function.imagecreate
| From: | Ortreum at osu1 dot php dot net | Date: | Thu, 07 Sep 2006 11:45:33 +0000 |
| Subject: | note 69484 added to function.imagecreate | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-116824@lists.php.net to get a copy of this message | ||
Use image as javascript test
There are two files - an image and an executive file. The image is loaded if the JavaScript is
enabled. After (!) the page is loaded $_SESSION['js'] + 0 is 0 or 1.
the image (js.img.php):
<?php
session_start();
$_SESSION['js'] = 1;
header('Content-type: image/gif');
imagegif($im = imagecreate(1, 1));
imagedestroy($im);
?>
the html file (file.php):
<html>
<head>
<!--
<script type="text/javascript">
var img = new Image();
img.src = "js.img.php";
</script>
-->
</head>
<body>
<?php
if ($_SESSION['js'] . '' == '') echo 'Not checked for
JavaScript.';
else if ($_SESSION['js'] + 0 == 0) echo 'JavaScript is disabled.';
if ($_SESSION['js'] + 1 == 1) echo 'JavaScript is enabled.';
?>
</body>
</html>
There are much more hidden actions that you can do by "pictures".
----
Server IP: 212.124.37.9
Probable Submitter: 80.132.79.162
----
Manual Page -- http://www.php.net/manual/en/function.imagecreate.php
Edit -- https://master.php.net/note/edit/69484
Del: integrated -- https://master.php.net/note/delete/69484/integrated
Del: useless -- https://master.php.net/note/delete/69484/useless
Del: bad code -- https://master.php.net/note/delete/69484/bad+code
Del: spam -- https://master.php.net/note/delete/69484/spam
Del: non-english -- https://master.php.net/note/delete/69484/non-english
Del: in docs -- https://master.php.net/note/delete/69484/in+docs
Del: other reasons-- https://master.php.net/note/delete/69484
Reject -- https://master.php.net/note/reject/69484
Search -- https://master.php.net/manage/user-notes.php