(PHP 4, PHP 5, PHP 7)
Check whether key exists
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().
Returns:
Returns TRUE
if the key exists, FALSE
otherwise.
See also:
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