If you have spent any time writing Object Oriented PHP or Drupal PHP you will know that there are many instances where it can be handy to know exactly what you are dealing with at a specific point in your code. For example, possibly you are troubleshooting an issue and cannot figure out why a variable is not acting as it should, or maybe you are writing logging routines to make sure all of your exceptions are logged for future troubleshooting. Whatever your needs may be it can be very helpful to use PHP Magic constants to assist you in your troubleshooting.
The PHP development team announces the immediate availability of PHP 5.4.10 and PHP 5.3.20. These releases fix about 15 bugs. Please note that the PHP 5.3 series will enter an end of life cycle and receive only critical fixes as of March 2013. All users of PHP are encouraged to upgrade to PHP 5.4.
For source downloads of PHP 5.4.10 and PHP 5.3.20 please visit our downloads page, Windows binaries can be found on windows.php.net/download/.
The list of changes are recorded in the ChangeLog.