Red Hat Security Advisory 2015-1053-01 – PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server. The php55 packages provide a recent stable release of PHP with the PEAR 1.9.4, memcache 3.0.8, and mongo 1.4.5 PECL extensions, and a number of additional utilities. The php55 packages have been upgraded to upstream version 5.5.21, which provides multiple bug fixes over the version shipped in Red Hat Software Collections 1.