odbc_error() questions

[Wescotte]

Reading the docs I noticed the following appended by a user

"If you use an argument, make sure its the CONNECTION_ID and not the
RESULT_ID.
Testing the result can return a null string or sometimes a garbage
string."

I'm getting very strange results when using odbc_error($con nect) where
it's almost always true and when I follow up with
odbc_errormsg($ connect); I get junk results. However if I leave out a
connection id it seems to function correctly (that is never returns
true)

Any ideas why I'm sometimes getting garbage back?

Here is a little sample I wrote with it's output

<?php

include "c:/out_of_httpd_sc ope_vars.php";
$connect = odbc_connect ("AS400", $USERNAME,$PASS WORD);
odbc_autocommit ($connect, FALSE);

if ($connect == false)
printf("Problem connecting to the database");

for ($i = 1; $i < 1000; $i++) {
$query = "LOCK TABLE WEBSYS.FRTBNUM IN EXCLUSIVE MODE";
$result = odbc_exec($conn ect, $query);
if (odbc_error($co nnect)) {
echo "ERROR! Unable to lock table SQL ($query) failed errormsg = (" .
odbc_errormsg($ connect) . ") <BR>";
}
odbc_rollback($ connect);

}
odbc_close($con nect);
?>

Output is 1000x of
ERROR! Unable to lock table SQL (LOCK TABLE WEBSYS.FRTBNUM IN EXCLUSIVE
MODE) failed errormsg = ()


However when I don't put this in a loop and just execute it a single
time sometimes it outputs the error message and sometimes it doesn't.

So do I just drop the $connect from odbc_error()?