I just copy the configuration from the php52's php.ini and now all works:
[MySQLi]
; Maximum number of links. -1 means no limit.
mysqli.max_links = -1
; Default port number for mysqli_connect(). If unset, mysqli_connect() will use
; the $MYSQL_TCP_PORT or the mysql-tcp entry in /etc/services or the
; compile-time value defined MYSQL_PORT (in that order). Win32 will only look
; at MYSQL_PORT.
mysqli.default_port = 3306
; Default socket name for local MySQL connects. If empty, uses the built-in
; MySQL defaults.
mysqli.default_socket = /Applications/MNPP/tmp/mysql/mysql.sock
; Default host for mysql_connect() (doesn't apply in safe mode).
mysqli.default_host =
; Default user for mysql_connect() (doesn't apply in safe mode).
mysqli.default_user =
; Default password for mysqli_connect() (doesn't apply in safe mode).
; Note that this is generally a *bad* idea to store passwords in this file.
; *Any* user with PHP access can run 'echo get_cfg_var("mysqli.default_pw")
; and reveal this password! And of course, any users with read access to this
; file will be able to reveal the password as well.
mysqli.default_pw =
; Allow or prevent reconnect
mysqli.reconnect = Off
In the php53's php.ini there is not exists a configuration for mysqli:
https://github.com/jyr/MNPP/blob/master/conf/php53/php.ini
I just copy the configuration from the php52's php.ini and now all works: