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# dbmfirstkey

(PHP 3 <= 3.0.18, PHP 4 >= 4.0.0)

dbmfirstkey -- Retrieves the first key from a DBM database

## Description

``string dbmfirstkey` (int dbm_identifier)`

Returns the first key in the database. Note that no particular order is guaranteed since the database may be built using a hash-table, which doesn't guarantee any ordering.

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