SQLite3::__construct

(PHP 5 >= 5.3.0, PHP 7)

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

Descrierea

public SQLite3::__construct ( string $filename [, int $flags = SQLITE3_OPEN_READWRITE | SQLITE3_OPEN_CREATE [, string $encryption_key = null ]] )

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.

Parametri

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.

Valorile întoarse

Returns an SQLite3 object on success.

Erori/Excepții

Throws an Exception on failure.

Exemple

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());
?>

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User Contributed Notes 2 notes

up
17
bohwaz
5 years ago
$encryption_key and all encryption features will be enabled only if the SQLite encryption module is installed. It's a proprietary, costly module. So if it's not present, supplying an encryption key will have absolutely no effect.
up
-14
Anonymous
4 years ago
Construct will fail if \ backslash is used in the database path,
use / forward slash instead for directory separators.
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