Description:
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a) When adding user specific entries to php.ini these are not returned.
b) the location of php.ini is not available via a standard function

The combination of a + b makes it almost impossible to have user specific additions to php.ini
So ini_get() should allow to read user specific entries
and/or the php.ini location should be available as a variable or via ini_get


Reproduce code:
---------------
a) 
php.ini contains:
uml2phphome = "c:/Programme/BITPlan/UML2PHP"

<?php
echo ini_get("uml2phphome");
?>

b) 
echo PHP_INI_PATH;




Expected result:
----------------
a) c:/Programme/BITPlan/UML2PHP
b) c:/Windows/PHP.INI on my windows machine
/usr/local/lib/php5.0.3/php.ini on my linux machine

Actual result:
--------------
nothing