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filter_id> <Filter Fonctions
[edit] Last updated: Fri, 25 May 2012

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filter_has_var

(PHP 5 >= 5.2.0)

filter_has_varVérifie si une variable d'un type spécifique existe

Description

bool filter_has_var ( int $type , string $variable_name )

Liste de paramètres

type

Une constante parmi INPUT_GET, INPUT_POST, INPUT_COOKIE, INPUT_SERVER ou INPUT_ENV.

variable_name

Nom de la variable à vérifier.

Valeurs de retour

Cette fonction retourne TRUE en cas de succès ou FALSE si une erreur survient.



add a note add a note User Contributed Notes filter_has_var
Anonymous 20-May-2009 08:28
To note: filter_has_var() is a bit faster than isset()
drm at melp dot nl 15-Jan-2009 06:54
Please note that the function does not check the live array, it actually checks the content received by php:

<?php
$_GET
['test'] = 1;
echo
filter_has_var(INPUT_GET, 'test') ? 'Yes' : 'No';
?>

would say "No", unless the parameter was actually in the querystring.

Also, if the input var is empty, it will say Yes.

 
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