$ php --ini
Configuration File (php.ini) Path: /etc/php5/cli
Loaded Configuration File:         /etc/php5/cli/php.ini
Scan for additional .ini files in: /etc/php5/cli/conf.d
Additional .ini files parsed:      /etc/php5/cli/conf.d/05-opcache.ini,
/etc/php5/cli/conf.d/10-pdo.ini,
/etc/php5/cli/conf.d/20-curl.ini,
/etc/php5/cli/conf.d/20-json.ini,
/etc/php5/cli/conf.d/20-readline.ini

# php --ini
Configuration File (php.ini) Path: /srv/php-5.5.13/etc
Loaded Configuration File:         /srv/php-5.5.13/etc/php.ini
Scan for additional .ini files in: /srv/php-5.5.13/etc/conf.d
Additional .ini files parsed:      /srv/php-5.5.13/etc/conf.d/amqp.ini,
/srv/php-5.5.13/etc/conf.d/pthreads.ini,
/srv/php-5.5.13/etc/conf.d/redis.ini,
/srv/php-5.5.13/etc/conf.d/safenet.ini,
/srv/php-5.5.13/etc/conf.d/xdebug.ini