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Last updated: Tue, 28 May 2002 view the printer friendly version or the printer friendly version with notes or change language to Czech \| German \| Spanish

getenv

(PHP 3, PHP 4 >= 4.0.0)

getenv -- Gets 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 of the user

You can see a list of all the environmental variables by using phpinfo(). You can find out what many of them mean by taking a look at the CGI specification, specifically the page on environmental variables.

Huomaa: This function does not work in ISAPI mode.

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Last updated: Thu Oct 31 18:34:28 2002 EST