enable sqlite on linux

hi,

i installed php5 making:

apt-get install php5-cgi and after this i did apt-get install php5-sqlite3 now im tring to read some data from a sqlite3 database, it appears me this mistake:

Warning:  sqlite_open() [function.sqlite-open]: file is encrypted or is not a database in /www/sqlite.php on line 8

file is encrypted or is not a database.

i have been reading and i found that i have to work with PDO so i checked what i have enable with my php opening this code on my browser:

<?php
// Show all information, defaults to INFO_ALL
phpinfo();

// Show just the module information.
// phpinfo(8) yields identical results.
phpinfo(INFO_MODULES);



?>

i found this: 

PDO

PDO supportenabled
PDO drivers sqlite, sqlite2, mysql 


pdo_mysql

PDO Driver for MySQL, client library version5.1.37


pdo_sqlite

PDO Driver for SQLite 3.xenabled
PECL Module version 1.0.1 $Id: pdo_sqlite.c,v 1.10.2.6.2.4 2008/12/31 11:17:42 sebastian Exp $ 
SQLite Library 3.6.16 


that means that i already have install PDO

after this i looked for php.ini file and add this lines:

extension_dir = "/usr/lib/php5/20060613+lfs" //this its the route where i have the following lines: pdo, pdo_sqlite, sqlite.so

extension=pdo.so
extension=pdo_sqlite.so
extension=sqlite.so

after this i have the same mistake:

Warning:  sqlite_open() [function.sqlite-open]: file is encrypted or is not a database in /www/sqlite.php on line 8


file is encrypted or is not a database.

what am i doing wrong? help!!!

 		 	   		  
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