UPDATE - Changing Password

Hi.

Does anyone know how to use UPDATE with PHP for changing a password? I've
tried the following code:

$query = "UPDATE patperinfo SET trim(password)='$newpw' WHERE
trim(gpid)='$gpidno'";
$result = pg_exec($database, $query);

where new $newpw & $gpidno are the values entered into a form then passed to
the script.

I get the following error:

Warning: PostgreSQL query failed: ERROR: parser: parse error at or near "("
at character 27 in /home/webpages/yamkedoo/Tests/chpw1.php on line 48

where the error is on the line: $result = pg_exec($database, $query);

Thanx :-)

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