SQLite Syntax Error with Alter Command

I tried to execu开发者_StackOverflow中文版te a SQLite ALTER TABLE [...] RENAME TO [...] function in PHP, but I keep running into an error: Warning: sqlite_query() [function.sqlite-query]: near "ALTER": syntax error in [file] on line 3

The code seems simple to me, and I have tried to get around the error, but so far the problem has stumped two programmers. I also get a similar error when trying to drop the table (Warning: sqlite_query() [function.sqlite-query]: near "EXISTS": syntax error in [file] on line 10). Looking at the SQLite website, the code seems to be ok:

<?php
    $db = sqlite_open("[database file]", 0666);
    sqlite_query($db, "ALTER TABLE users RENAME TO old_users");
    /* [...] */
    sqlite_query($db, "DROP TABLE IF EXISTS old_users");
?>

Complete error page:

Warning: sqlite_query() [function.sqlite-query]: near "ALTER": syntax error in [file] on line 3

Warning: sqlite_query() [function.sqlite-query]: near "EXISTS": syntax error in [file] on line 10

Might anyone have any clue why this doesn't work?

Looking at the changelogs, it seems that :

• RENAME has been added in SQLite 3.1
• and IF EXISTS has been added in SQLite 3.3

You are using SQLite functions -- which are for SQLite 2.

Try using the SQLite3 API, which supports SQLite 3.