php.ini modification does not take effect

Hello,

I'm having a problem with accessing to MySQL via PHP.
The problem is that PHP ties to find MySQL socket in /tmp/mysql.sock.

PHP returns "Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2) ".

But actual socket is in /var/lib/mysql/mysql.sock.
This is configured on my.cnf (socket          = /var/lib/mysql/mysql.sock -> mysqld & client) and php.ini as well (mysql.default_socket = /var/lib/mysql/mysql.sock).


But phpinfo() returns:

Configuration File (php.ini) Path       /usr/local/lib
MYSQL_SOCKET       /tmp/mysql.sock

My php.ini located in  /etc/php.ini

How do I solve this problem?
Please someone advise.

Thank you.