Apparently, having rested after the release of 5.5, php.net put in beta a new design. The old one looked very old-fashioned. You can switch to the link
php.net/?setbeta=1&beta=1 . Used HTML5, jQuery, jQueryUI. In addition to the overall beauty, I was pleased with the search not just with auto-completion (this won’t surprise anyone), but with a brief description of the functions, methods, categories, etc. But I was upset by the changed logo.
PS PHP 5.3 is not removed from the download and, apparently, support - the status of Old Stable