# dba_firstkey

(PHP 4, PHP 5, PHP 7)

dba_firstkey — Fetch first key

### Description

dba_firstkey ( resource `$handle` ) : 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

`handle`

  The database handler, returned by dba_open() or dba_popen().

### Return Values

Returns the key on success or `FALSE` on failure.

### See Also

- dba_nextkey() - Fetch next key
- dba_key_split() - Splits a key in string representation into array representation
- Example 2 in the DBA examples