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dba_sync — Synchronizes a database.


bool dba_sync(dba_handle);
resource dba_handle: Resource handle opened by dba_open() or dba_popen()


TRUE on success; FALSE on failure


dba_sync() calls the handler database's synchronize functionality. Synching is generally used to force any changes to a database to be written to disk. Not all databases have or need this feature. Consult your database documentation for more details. As a friend noted when reading this writeup, calling dba_sync() is very much like performing a COMMIT with a database that supports transactions.


PHP Version: 3.0.8+, 4.0b2+


Example 221. Sync a db file

dba_sync ($dba_handle)
    or die ("The database could not be synchronized.");

PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at The authors of this book have elected not to choose any options under the OPL. This online book was obtained from and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.

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