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dba_nextkey — Fetches the value associated with the next key in the db file.


mixed dba_nextkey(dba_handle);
resource dba_handle: Resource handle opened by dba_open() or dba_popen()


On success, the value associated with the next key in the db file; FALSE on failure.


dba_nextkey() moves the db file's internal pointer to the next position and retrieves the key name stored there. If the pointer cannot be incremented or the key cannot be retrieved, the function returns FALSE.


PHP Version: 3.0.8+, 4.0b2+

See also

To fetch the first key in the db file



Example 216. Fetch the next key in the db file

$key = dba_nextkey ($dba_handle);

if ($key === FALSE)
    die ("The next key could not be fetched.  You are most likely at the end of the file.");

echo "The current key is <i>$key</i>";

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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