SQLite3::__construct

(PHP 5 >= 5.3.0, PHP 7)

SQLite3::__construct — Instantiates an SQLite3 object and opens an SQLite 3 database

说明

public SQLite3::__construct ( string $filename [, int $flags [, string $encryption_key ]] )

Instantiates an SQLite3 object and opens a connection to 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.

返回值

Returns an SQLite3 object on success.

错误／异常

Throws an Exception on failure.

范例

Example #1 SQLite3::__construct() example


<?php
$db = new SQLite3('mysqlitedb.db');

$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());
?>