Hello. I'm just downloading the entire site under this [a href=\"http://www.usphp.com/zend.html\" target=\"_blank\"]Zend [/a] url. I want to know how the extensions plugs in the php core, what I have to use from the PHP core, need I to recompile something with the extension? or just add it on the php.ini? or the httpd.conf? what is the difference between modules and extensions? etc. Basically I need some examples for simple extensions. I like to build some like I've posting on this topic [a href=\"http://www.phpfreaks.com/forums/index.php?showtopic=83647\" target=\"_blank\"]Global array like $_SESSION[/a] I can use those functions for memory handling, but I want to do this more easy, adding an superglobal array to simulate the ServletContext that provides Apache Tomcat when you are programming JavaServlets. I want to make this: * an array that all scripts on the application (directory and child directorys) can set/get vars (objects/values/arrays) Is it so dificult?? And if it is, better. Thanks for all who wants to help, and particulary who helps me... Eric