Migrating from PHP 5.2.x to PHP 5.3.x
PHP Manual

Changes to INI file handling

PHP 5.3.0 has significantly improved performance and parsing of INI files, and adds several new syntax features.

The following new ini directives have been added:

The following ini directives have new default values:


Migrating from PHP 5.2.x to PHP 5.3.x
PHP Manual