get_cfg_var and friends...

Hello, I'm playing around with config variables at the moment, and I've got an "interesting" example. :) Here's the code : --- <?php function display() { echo "get_magic_quotes_runtime()=".get_magic_quotes_runtime()."<BR>\n"; echo "get_cfg_var('magic_quotes_runtime')=".get_cfg_var('magic_quotes_runtime')."<BR>\n"; } ?> Current status :<BR> <?php display(); ?> Turn it on: set_magic_quotes_runtime(1);<BR> <?php set_magic_quotes_runtime(1); display(); ?> Turn it off : set_magic_quotes_runtime(0);<BR> <?php set_magic_quotes_runtime(0); display(); ?> --- And the result [magic_quotes_runtime are turned ON in my php.ini] : --- Current status : get_magic_quotes_runtime()=1 get_cfg_var('magic_quotes_runtime')=1 Turn it on: set_magic_quotes_runtime(1); get_magic_quotes_runtime()=1 get_cfg_var('magic_quotes_runtime')=1 Turn it off : set_magic_quotes_runtime(0); get_magic_quotes_runtime()=0 get_cfg_var('magic_quotes_runtime')=1 --- I also checked phpinfo display at every step and I always get "magic_quotes_runtime ON ON" on this example. "magic_quotes_runtime" is just an example, same behaviour with others. Anyway... As I've looked at the code, I understand why I get those values, but without, it's somewhat obscure... I could have some ideas about how to make it more simple, but what I don't understand at the moment is why there are so many places where config vars are stored. Let's go for a list : * php_core_globals (the ones used by the PG macro), initialized by compiled-in values, runtime modified, not all config var are present. * configuration_hash (static in configuration-parser.y, used by get_cfg_var, has got the php.ini variables) * known_directives (static in php_ini.c), used by php_info(), contains master (ie compiled-in values overridden by their values if any in php.ini), as well as the modified values (.htaccess). So, depending of the variable, there are up to 3 places where its value can be found ! 8-) Do I misunderstand something or miss some clever trick behind all this ? I'll be happy to spend some time with you guys to help clarifying all this and/or/xor to developp a common interface to access config vars if ever possible/acceptable. Any ideas on this subject ? Flavien Lebarbé. -- Open Care