$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.
SQLite3::__construct
(PHP 5 >= 5.3.0)
SQLite3::__construct — Instantiates an SQLite3 object and opens an SQLite 3 database
Beskrivelse
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.
Parametre
-
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.
Returnerings Værdier
Returns an SQLite3 object on success.
Eksempler
Eksempel #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());
?>
add a note
User Contributed Notes 2 notes
bohwaz ¶
12 years ago
jtreurniet at example dot com ¶
6 years ago
Note that the SQLITE3_OPEN_READONLY flag cannot be combined with the SQLITE3_OPEN_CREATE flag. If you combine both of these flags, a rather unhelpful "Unable to open database: out of memory" exception will be thrown.
