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Oracle Tips by Burleson
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$GLOBALS
These are variables containing a reference to
every variable currently available within the global scope of the
script. The keys of this array are the names of the global variables.
$GLOBALS have existed since PHP 3.
$_SERVER
These are variables set by the web server or
otherwise directly related to the execution environment of the current
script. They are analogous to the old $HTTP_SERVER_VARS array,
still available, but deprecated.
$_GET
These are variables provided to the script via
HTTP GET. They are analogous to the old $HTTP_GET_VARS array,
still available, but deprecated.
$_POST
These are variables provided to the script via
HTTP POST. They are analogous to the old $HTTP_POST_VARS array,
still available, but deprecated.
$_COOKIE
These are variables provided to the script via
HTTP cookies. They are analogous to the old $HTTP_COOKIE_VARS
array, till available, but deprecated.
$_FILES
These are variables provided to the script via
HTTP post file uploads. They are analogous to the old $HTTP_POST_FILES
array, still available, but deprecated. See POST method uploads for
more information.
$_ENV
These are variables provided to the script via the
environment. They are analogous to the old $HTTP_ENV_VARS
array, still available, but deprecated.
See
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