SQLite3::backup

(PHP 7 >= 7.4.0, PHP 8)

SQLite3::backup — Backup one database to another database

Descrizione

public SQLite3::backup(SQLite3 $destination, string $sourceDatabase = "main", string $destinationDatabase = "main"): bool

SQLite3::backup() copies the contents of one database into another, overwriting the contents of the destination database. It is useful either for creating backups of databases or for copying in-memory databases to or from persistent files.

Suggerimento

As of SQLite 3.27.0 (2019-02-07), it is also possible to use the statement VACUUM INTO 'file.db'; to backup the database to a new file.

Elenco dei parametri

destination: A database connection opened with SQLite3::open().
sourceDatabase: The database name is "main" for the main database, "temp" for the temporary database, or the name specified after the AS keyword in an ATTACH statement for an attached database.
destinationDatabase: Analogous to sourceDatabase but for the destination.

Valori restituiti

Restituisce true in caso di successo, false in caso di fallimento.

Esempi

Example #1 Backup an existing database

<?php
// $conn is a connection to an already opened sqlite3 database

$backup = new SQLite3('backup.sqlite');
$conn->backup($backup);
?>

add a note

User Contributed Notes

There are no user contributed notes for this page.