Description:
------------
When using sqlite_single_query and the return value from the query is 0 (zero) it's handled as if the query failed.

The code will not output 0, but instead die with the following message: "not an error"

The value of $result is set to 0, which is expected.

Reproduce code:
---------------
<?php
$db = sqlite_open("test.db");
sqlite_query($db, "CREATE TABLE Test ( number NUMERIC )");
sqlite_query($db, "INSERT INTO Test (number) VALUES (0)");

$result = @sqlite_single_query($db, "SELECT number FROM Test")
 or die(sqlite_error_string(sqlite_last_error($db)));

echo $result;
?>

Expected result:
----------------
A return value of 0 from the database being returned to $result without an exception.