Php/docs/sqlite3.open
SQLite3::open
(PHP 5 >= 5.3.0, PHP 7)
SQLite3::open — Opens an SQLite database
说明
public SQLite3::open
( string $filename
[, int $flags = SQLITE3_OPEN_READWRITE | SQLITE3_OPEN_CREATE
[, string $encryption_key = ""
]] ) : void
Opens an SQLite 3 Database. If the build includes encryption, then it will attempt to use the key.
参数
filename- Path to the SQLite database, or
:memory:to use in-memory database. flags- Optional flags used to determine how to open the SQLite database. By default, open uses
SQLITE3_OPEN_READWRITE | SQLITE3_OPEN_CREATE.
SQLITE3_OPEN_READONLY- Open the database for reading only.
SQLITE3_OPEN_READWRITE: Open the database for reading and writing.SQLITE3_OPEN_CREATE: Create the database if it does not exist.
encryption_key- An optional encryption key used when encrypting and decrypting an SQLite database. If the SQLite encryption module is not installed, this parameter will have no effect.
返回值
没有返回值。
范例
Example #1 SQLite3::open() example
<?php/** * Simple example of extending the SQLite3 class and changing the __construct * parameters, then using the open method to initialize the DB. */class MyDB extends SQLite3{ function __construct() { $this->open('mysqlitedb.db'); }}$db = new MyDB();$db->exec('CREATE TABLE foo (bar STRING)');$db->exec("INSERT INTO foo (bar) VALUES ('This is a test')");$result = $db->query('SELECT bar FROM foo');var_dump($result->fetchArray());?>
