Você procurou por: variables (Hebraico - Sueco)

if variables declared in the class of which the obj is an instance, have not been assigned a value, those will not be returned in the array.
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if you enable register_globals, session_unregister() should be used since session variables are registered as global variables when session data is deserialized.
varning

for command line users, make sure that you either have the c+ + environment variables registered, or have run vcvars.bat, and then execute one of the following:
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environment variables are normal global variables, so you must either declare them as global variables in your function (by using "global $document_root;", for example) or by using the global variable array (ie, "$globals["document_root"]".
since php 4.1.0 you can also use the superglobal array $_server since php 4.1.0 you can also use the superglobal array $_server which is available in every function.