<?php
$index = 4;
$id = dba_open("frenzy.db", "w", "flatfile");
if(!$id) exit ("Some error...");
if(dba_exists($index, $id)) exit ("This key is using");
dba_close($id);
?>
dba_exists
(PHP 4, PHP 5, PHP 7)
dba_exists — Check whether key exists
Descrierea
dba_exists
( string|array
$key
, resource $dba
) : bool
dba_exists() checks whether the specified
key exists in the database.
Parametri
-
key -
The key the check is performed for.
-
dba -
The database handler, returned by dba_open() or dba_popen().
Valorile întoarse
Returns true if the key exists, false otherwise.
A se vedea și
- dba_delete() - Delete DBA entry specified by key
- dba_fetch() - Fetch data specified by key
- dba_insert() - Insert entry
- dba_replace() - Replace or insert entry
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User Contributed Notes 1 note
frenzy dot ivan at gmail dot com ¶
15 years ago
