Runtime Configuration

The behaviour of these functions is affected by settings in php.ini.

Mcrypt configuration options

Name	Default	Changeable	Changelog
mcrypt.algorithms_dir	null	INI_ALL
mcrypt.modes_dir	null	INI_ALL

For further details and definitions of the INI_* modes, see the Where a configuration setting may be set.

Here's a short explanation of the configuration directives.

mcrypt.algorithms_dir string

The directory that contains the algorithms. Defaults to the directories compiled within libmcrypt, which is typically /usr/local/lib/libmcrypt. See mcrypt_list_algorithms for additional details.

mcrypt.modes_dir string

The directory that contains the modes. Defaults to the directories compiled within libmcrypt, which is typically /usr/local/lib/libmcrypt. See mcrypt_list_modes for additional details.