OCS 2.2 - Mysql alternate port error

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Making some test on beta version
I have dumped my databse to a new one, same server / login /password
During setup i use the same server adresse like server:port as old version.

After setup cannot acces to server with "mysql unknow host error", it seems that mysqli_connect cannot server adresse with port but like this mysqli_connect(server,login,pws;db;port).

To get it work "temporary" i update line 10 and 31 on /backend/require/connexion.php

and also line 150 on requiere/function_commun.php

with $link_ocs=mysqli_connect(SERVER_WRITE,COMPTE_BASE,PSWD_BASE,"","3307");