It appears that the connection is good (no msg of warning or errors) but the function ibase_query() gives a warning like:

InterBase module: 0 is not link or transaction index

source:

        <?
		$ib_link = ibase_connect("\\\\SPDCCPI01\C:\_BASES\INTRANET.GDB", "SYSDBA", "ib") || die(exit());
		print ("IB_LINK  : $ib_link<BR>\n");
		$ib_query	= "select * from servic";
		print ("IB_QUERY : $ib_query<BR>\n");
		$ib_result	= ibase_query(0, $ib_query);
		ibase_close();
	?>

I can't do less... heelp!