Description:
------------
Hello,

sqlite_last_error() is supposed to return the error code from SQLite when a SQL statement fails. In case of error, this function returns always 1. So if you do

echo sqlite_error_string(sqlite_last_error()); you always get the same error message description which is:

SQL logic error or missing database. The method "lastError()" of the super class SQLiteDatabase behaves the same way!

This is very annoying because you're warned about the error but you cannot log it correctly in a log file for example nor applying a specific treatment to a specific error

Reproduce code:
---------------
<?
/* Using procedural functions */
$db=sqlite_open('testdb.db');
sqlite_exec('CREATE TABLE a_table(a_col);');
//Creation of a faulty statement
sqlite_exec($db,'INSERT INTO invalid_table VALUES(\'a_value\');') or showError(sqlite_last_error($db));
/*This should return:
no such table : invalid_table...
*/
/*Generation of another error*/
sqlite_query($db,'SELECT b_col FROM a_table;') or showError(sqlite_last_error($db));
/* This should return 
no such column: b_column...
*/
function showError($err_code)
{
 echo sqlite_error_string($err_code);
 //Will always result in "SQL logic error or missing..."
}
?>

Expected result:
----------------
As mentionned in the code itself, I'd expect to get an appropriate error code in order to :

- Log the errors correctly in an error file
- In case of exceptions handling, take the appropriate action according to the last error


Actual result:
--------------
Bad error code returned since it's always the same no matter of what the real error is!