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[edit] Last updated: Fri, 17 May 2013

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dba_exists

(PHP 4, PHP 5)

dba_existsVerificar si la clave existe

Descripción

bool dba_exists ( string $key , resource $handle )

dba_exists() verifica si la key especificada existe en la base de datos.

Parámetros

key

La clave usada para el chequeo.

gestor

El gestor de base de datos, devuelto por dba_open() o dba_popen().

Valores devueltos

Devuelve TRUE si la clave existe, FALSE de lo contrario.

Ver también



add a note add a note User Contributed Notes dba_exists - [1 notes]
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frenzy dot ivan at gmail dot com
4 years ago
<?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);

?>

 
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