(Via digg) An apparent easter egg in some versions of PHP will display a picture of a dog when any PHP script is loaded with a particular query string.
Try it here on SitePoint:
It appears that different PHP versions have different animals embedded in them:
Apparently the doggie also appears on the page generated by
phpinfo() on April 1st every year.
This has been around awhile, but it’s news to me.
Some other query strings to try:
If you’re concerned about the security implications of revealing your PHP version to the masses, be sure to disable the
expose_php option in your
php.ini file, which also makes this easter egg go away.