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Manual Table of Contents
Up to PHP options/info
PHP options/info
* error_log
* error_reporting
* getenv
* get_cfg_var
* get_current_user
* get_magic_quotes_gpc
* get_magic_quotes_runtime
* getlastmod
* getmyinode
* getmypid
* getmyuid
* getrusage
* phpinfo
* phpversion
* putenv
* set_magic_quotes_runtime
* set_time_limit


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getenv

getenv -- Get the value of an environment variable.

Description

string getenv(string varname);

Returns the value of the environment variable varname, or false on an error. 

$ip = getenv("REMOTE_ADDR"); // get the ip number from the user


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