Reason:

• PHP extensions load order must respect inter-extension dependencies (as extension are dlopen using RTLD_NOW)

Current solution use alphabetical order, which is not clean

• broken if a user changes Apache locale (pdo.ini must be before pdo_*.ini)
• imply messy workaround such as xml_wddx.ini, z-foo.ini...

Change: use a numeric prefix for all PHP extension configuration files

Notice: unchanged extensions will be loaded after all the standard ones, so, will continue to work.
Mass rename will occurs during PHP 5.6 mass rebuild.

'''Draft:'''

'''C extensions and PECL packages configuration file.'''

Each extension should drop a configuration file in %{php_inidir} and/or %{php_ztsinidir} to enable the extension. This file must contains the name of the loaded extension.
Starting with Fedora 21, the file must use a numeric prefix to ensure correct load order:

• range 00-19 is reserved for zend_extensions (ex: 10-opcache.ini, 15-xdebug.ini...)
• range 20-39 is reserved for core extensions (ex: 20-pdo.ini, 30-pdo_pgsql.ini...)
• range 40-99 is available for other extensions (ex: 40-zip.ini...)