zabbix and mysqli

[wurstyin]

Dear all,

I am using zabbix to monitor my own services even I am not a root user.
It means I have to install and start all processes as a user unix lambda and not as root.

Now I was using zabbix 2.0.6 with php5.4.16.
And I wanted to upgrade zabbix server version.
So I choose to upgrade with zabbix 2.2.10 as it is recommended but I was not able to connect on the MySQL DB due to a mysqli_connect issue.

The configuration is:
zabbix: 2.2.10
apr 1.4.6
apr-util 1.5.2
httpd 2.2.24
openldap 2.4.35
php5: 5.4.16
MySQL 5.1.71

PHP was configured with these options:
--with-mysql=mysqlnd \
--with-mysqli=mysqlnd \
--with-pdo-mysql=mysqlnd \

I was able to connect when I updated this line in the file : conf/db.inc.php.
$DB['DB'] = mysqli_connect($DB['SERVER'], $DB['USER'], $DB['PASSWORD'], $DB['DATABASE'], $DB['PORT']);

by:
$DB['DB'] = mysqli_connect("hostname:3306", "mysqluser", "mysqlpasswd", "zabbix");

After that : it was working fine

Do you understand why I have this issue?
Why do I have to change the connect command?

Thanks for your feedback