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dba_exists

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

dba_exists — Check whether key exists

Description

dba_exists(string|array $key, Dba\Connection $dba): bool

dba_exists() checks whether the specified key exists in the database.

Parameters

key: The key the check is performed for.
dba: A Dba\Connection instance, returned by dba_open() or dba_popen().

Return Values

Returns true if the key exists, false otherwise.

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_delete() - Delete DBA entry specified by key
dba_fetch() - Fetch data specified by key
dba_insert() - Insert entry
dba_replace() - Replace or insert entry

© 1997–2025 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.dba-exists.php