What is this? This is a QR Code: a machine-readable image-based code consisting of black and white squares. QR Codes are typically used for storing URLs and other information for reading by a smart devices like smart phones.
When scanned by an appropriate app on your mobile device, you are redirected to the embedded URL of this page. View this page with one device (desktop or another mobile device), and then scan the
QR Code with your mobile device. This makes it quicker and easier to browse a page discovered on one device on your mobile device without manually entering the URL in the mobile device browser address bar.
⚬ If you are using an Android phone, you can find a QR Code reading app at Google Play on your device.
⚬ If you are using an iOS device (iPhone, iPad, etc.), you can find a QR Code reading app at the Apple iTunes App Store on your device.
⚬ If you are using a Windows phone, you can find a QR Code reading app at the Microsoft Store on your device.
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What is hotlinking? Hotlinking (= bandwidth and intellectual property theft) refers to direct linking to a website's files (images, video, etc.). An example would be using an <img> HTML tag to display an image you found on someone else's webpage so it
will appear on your own website, blog, forum message, etc. The most common solution is to add Rewrite lines to .htaccess file in images directory to check Referer. Only display images if referer is from certain domains. Old school,
ineffective, and easy to cheat. For one, it is common for browsers to not pass referer (for example, under certain browser privacy settings, and when viewing site as HTTPS). Referer can also be faked or spoofed. Unreliable. This tool
serves to block hotlinking of images without referer checking.
You need to create two(2) files: (1) a page to display the image, and (2) a PHP file (image.php) to serve the image.
Change '/img/' in line 03 to reflect relative URL to images directory where you are linking to an image.
Change "/image.php?img=image.jpg" in line 25 to reflect URL to image.php, and image name.
Change "overlay.gif" in line 27 to reflect URL to overlay.gif. Download the file below.
Rather use a HTML page instead of a PHP one? Easy solution. Rename index.php as index.html. Then, in the same directory as the
file, create a .htaccess file if it does not already exists. Then add the following lines to the .htaccess file: