Migrating from PHP 5.4.x to PHP 5.5.x

migration55.changes What has changed in PHP 5.5.x migration55.incompatible Backward Incompatible Changes migration55.new-features New features migration55.deprecated Deprecated features in PHP 5.5.x migration55.changed-functions Changed Functions migration55.new-functions New Functions migration55.classes New Classes and Interfaces migration55.new-methods New Methods migration55.extensions-other Other changes to extensions migration55.global-constants New Global Constants migration55.ini Changes to INI file handling migration55.internals Changes to PHP Internals