Quick tip to get used PHP configurations.
Run the following in your fav terminal to list paths to the config files:
php -i |grep '\.ini'
Sample output:
Configuration File (php.ini) Path => /usr/local/php5/lib
Loaded Configuration File => /usr/local/php5/lib/php.ini
Scan this dir for additional .ini files => /usr/local/php5/php.d
Additional .ini files parsed => /usr/local/php5/php.d/10-extension_dir.ini,
/usr/local/php5/php.d/20-extension-opcache.ini,
/usr/local/php5/php.d/40-openssl.ini,
/usr/local/php5/php.d/50-extension-apcu.ini,
/usr/local/php5/php.d/50-extension-curl.ini,
/usr/local/php5/php.d/50-extension-gmp.ini,
/usr/local/php5/php.d/50-extension-igbinary.ini,
/usr/local/php5/php.d/50-extension-imap.ini,
/usr/local/php5/php.d/50-extension-intl.ini,
/usr/local/php5/php.d/50-extension-mcrypt.ini,
/usr/local/php5/php.d/50-extension-memcache.ini,
/usr/local/php5/php.d/50-extension-memcached.ini,
/usr/local/php5/php.d/50-extension-mongo.ini,
/usr/local/php5/php.d/50-extension-mssql.ini,
/usr/local/php5/php.d/50-extension-oauth.ini,
/usr/local/php5/php.d/50-extension-pdo_dblib.ini,
/usr/local/php5/php.d/50-extension-pdo_pgsql.ini,
/usr/local/php5/php.d/50-extension-pgsql.ini,
/usr/local/php5/php.d/50-extension-propro.ini,
/usr/local/php5/php.d/50-extension-raphf.ini,
/usr/local/php5/php.d/50-extension-readline.ini,
/usr/local/php5/php.d/50-extension-redis.ini,
/usr/local/php5/php.d/50-extension-solr.ini,
/usr/local/php5/php.d/50-extension-ssh2.ini,
/usr/local/php5/php.d/50-extension-twig.ini,
/usr/local/php5/php.d/50-extension-uploadprogress.ini,
/usr/local/php5/php.d/50-extension-xdebug.ini,
/usr/local/php5/php.d/50-extension-xhprof.ini,
/usr/local/php5/php.d/50-extension-xsl.ini,
/usr/local/php5/php.d/60-extension-pecl_http.ini,
/usr/local/php5/php.d/99-liip-developer.ini