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(PHP 4, PHP 5, PHP 7, PHP 8)
dba_delete — Delete DBA entry specified by key
$key, resource $dba): bool
dba_delete() deletes the specified entry from the database.
key
The key of the entry which is deleted.
dba
The database handler, returned by dba_open() or dba_popen().
成功时返回 true， 或者在失败时返回 false。
