sqlite_factory
(PHP 5)
sqlite_factory — Opens a SQLite database and returns a SQLiteDatabase object
说明
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 a 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');
?>
