Overview
KB
Technical FAQ
PHP Manual
CSS2 Manual
HTML Manual
JS Guide
JS Reference
PhpDock Manual
Nu-Coder Manual
PhpExpress Manual
PHP Joomla
Development
Learn PHP
 
<dba_fetchdba_handlers>
^DBA FunctionsLast updated: Mon, 26 Oct 2026

dba_firstkey

(PHP 4, PHP 5, PHP 7, PHP 8)

dba_firstkey — Fetch first key

Description

function dba_firstkey(Dba\Connection $dba): string|false

dba_firstkey() returns the first key of the database and resets the internal key pointer. This permits a linear search through the whole database.

Parameters

dba

A Dba\Connection instance, returned by dba_open() or dba_popen().

Return Values

Returns the key on success or false on failure.

Changelog

Version Description
8.4.0 The dba parameter expects a Dba\Connection instance now; previously, a valid dba resource was expected.

See Also


<dba_fetchdba_handlers>
^DBA FunctionsLast updated: Mon, 26 Oct 2026