Where does PHP include_path master value come from?

Question

Via phpinfo, I get the following for include_path Master Value.

.:/usr/share/pear:/usr/share/php

It does not appear to be set anywhere... php ini has all include_path(s) commented out, my apps do not set it manually, apache conf/php conf/other assorted conf's/ini's do not set it, no results when searching for set_include_path or phpvalue or ini_set, etc.

Any ideas where else "include_path" might be set? I am asking specifically about master value.

(I am on CentOS 5.4)

Answer 1

From php.ini file

; PHP's default setting for include_path is ".;/path/to/php/pear"
; http://php.net/include-path

and yours above seems to be adding PHP's directory, so current directory; pear; PHP (PHP's home) directory

You can also check Apache confs or your .htaccess file to see if you're setting it there.