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variables
the variable name is case-sensitive.

predefined variables
php provides a large number of predefined variables to any script which it runs.

cappadocian variables.
cappadocian variables.

http get variables: $_get
these individual globals are not autoglobals.

global variables: $globals
these individual globals are not autoglobals.

handling of global variables
next

http file upload variables: $_files
these individual globals are not autoglobals.

setting variables in the symbol table
if you compile with "-ddebug", php will print out a list of all memory that was allocated using emalloc() and estrdup() but never freed with efree() when it is done running the specified script.

a formalization of set theory without variables.
"a formalization of set theory without variables".

see also variable variables and function_exists().
see also call_user_func(), variable variables and function_exists().

the keys of this array are the names of the global variables.
contains a reference to every variable which is currently available within the global scope of the script.

change the address and port variables to suit your setup and execute.
simple tcp / ip server

it is not currently possible to register resource variables in a session.
it is currently impossible to register resource variables in a session.

for a listing of these variables, please see the section predefined variables.
in php 4.2.0 and later, the default value for the php directive register_globals is off.

since version 4.0.5 this function returns the number of variables extracted.
extr_if_exists and extr_prefix_if_exists was introduced in version 4.2.0.

for a complete list of other status variables you have to use the show status sql command.
example 1. mysql_stat() example

the session_unset() function free 's all session variables currently registered.
the session_unset() function frees all session variables currently registered.

using the types using the types parameter, you can specify, which request variables to import.
post includes the post uploaded file information.

the restored session variables will only be available in the array $http_session_vars.
this option is not available for windows platforms.

"extension of the limit theorems of probability theory to a sum of variables connected in a chain".
"extension of the limit theorems of probability theory to a sum of variables connected in a chain".