# sqlite_factory

(PHP 5 < 5.4.0)

sqlite_factory — Opens an SQLite database and returns an SQLiteDatabase object

### 说明

sqlite_factory ( string `$filename` [, int `$mode` = 0666 [, string `&$error_message` ]] ) : SQLiteDatabase

sqlite_factory() behaves similarly to sqlite_open() in that it opens an SQLite database or attempts to create it if it does not exist. However, a SQLiteDatabase object is returned rather than a resource. Please see the sqlite_open() reference page for further usage and caveats.

### 参数

`filename`

  The filename of the SQLite database.

`mode`

  The mode of the file. Intended to be used to open the database in read-only mode. Presently, this parameter is ignored by the sqlite library. The default value for mode is the octal value 0666 and this is the recommended value.

`error_message`

  Passed by reference and is set to hold a descriptive error message explaining why the database could not be opened if there was an error.

### 返回值

Returns an SQLiteDatabase object on success, `NULL` on error.

### 范例

Example #1 sqlite_factory() example

    <?php
    $dbhandle = sqlite_factory('sqlitedb');
    $dbhandle->query('SELECT user_id, username FROM users');

    /* functionally equivalent to: */

    $dbhandle = new SQLiteDatabase('sqlitedb');
    $dbhandle->query('SELECT user_id, username FROM users');

    ?>

### 参见

- sqlite_open() - Opens an SQLite database and create the database if it does not exist
- sqlite_popen() - Opens a persistent handle to an SQLite database and create the database if it does not exist