[horde] Horde on php 4.3.0 > fatal error

[alaind-ml-horde at masurel.info]

Hello,

My horde install worked fust perfect during 4 monthes. 2 days ago, my host 
switched to php 4.3.0 (released 27th dec 02), and after the login page I get 
this :

Fatal error: Call to undefined function: iswarning() 
in /home/yyy/www/horde/lib/Prefs/sql.php on line 101

when i search the file for iswarning I find this :

            /* Connect to the SQL server using the supplied parameters. */
            include_once 'DB.php';
            $this->db = &DB::connect($this->params, true);
            if (DB::isError($this->db) || DB::isWarning($this->db)) {
                Horde::fatal($this->db, __FILE__, __LINE__);
            }

I don't understand much why the bug is SQL related ... I don't know what to do 
& what to look for. My host send a mail saying setlocale() function changed in 
php 4.3.0 (parameters do'nt come with " any more) but I can't use that for my 
problem ...

I can access the db, I can access the email accounts from a copy of the webmail 
located on an other server (who did not switched to 4.3.0), therefore it is 
horde I have to work on. Can anyone give me a hand ? I searched the mailing 
list for 4.3.0 but did not found out ...

Alan.