PHP 'disable_functions' Generator.
Populates the 'disable_functions' directive in php.ini given the path to a PHP codebase, excluding disused functions.
Optionally, generates a warning if dangerous functions are in use, where dangerous are defined as those known to facilitate arbitrary code execution (in any environment, not necessarily all environments).
Usage: phpdfg [-q] -q Quiet mode. Do not emit warnings. The path to the source code repository you wish to configure against.