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# get_cfg_var

get_cfg_var -- Get the value of a PHP configuration option.

## Description

`string get_cfg_var`(string varname);

Returns the current value of the PHP configuration variable specified by `varname`, or false if an error occurs.

It will not return configuration information set when the PHP was compiled, or read from an Apache configuration file (using the php3_configuration_option directives).

To check whether the system is using a configuration file, try retrieving the value of the cfg_file_path configuration setting. If this is available, a configuration file is being used.

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