# dba_exists

(PHP 4, PHP 5)

dba_exists — Check whether key exists

### Description

bool dba_exists ( string `$key` , resource `$handle` )

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

### Parameters

`key`

  The key the check is performed for.

`handle`

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

### Return Values

Returns `TRUE` if the key exists, `FALSE` otherwise.

### See Also

- dba_delete()
- dba_fetch()
- dba_insert()
- dba_replace()