On Wed, 19 Jan 2005, Philip Olson wrote:
Could someone explain auto_globals_jit a little? It'll then be documented :)
AFAIK it is a setting to control whether autoglobals (GET/POST/COOKIE et al.) should be initialized JIT (Just In Time, when they are first used), or always when the script starts. I am not sure for which auto globals this setting has any effect though.
Derick
Doing a search at LXR, I've found this http://lxr.php.net/source/php-src/main/php_variables.c#579
JIT is controled by this:
zend_bool jit_initialization = (PG(auto_globals_jit) && !PG(register_globals) && !PG(register_long_arrays) && !PG(register_argc_argv));
So, you need auto_globals_jit enabled, as well register_globals, register_long_arrays and register_argc_argv disabled.
Looking below, we can check that it is only applied to $_ENV and to $_SERVER. $_POST, $_GET and $_COOKIE seems not to implement this JIT initalization.
$_REQUEST seems also not to be initialized when 'jit_initialization' is true.
But to be sure, just make a bit of testing :)
Nuno
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