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is_writable
Manuel PHP
PrécédentSuivant

is_writable

(PHP 4, PHP 5)

is_writable -- Indique si un fichier est autorisé en écriture

Description

bool is_writable ( string filename )

is_writable() retourne TRUE si filename existe et est accessible en écriture.

N'oubliez pas que PHP accède aux fichiers avec les mêmes autorisations que l'utilisateur qui fait tourner le serveur web (souvent, c'est 'nobody', personne).

Exemple 1. Exemple avec is_writable()

<?php
$filename = 'test.txt';
if (is_writable($filename)) {
   echo 'Le fichier est accessible en écriture';
} else {
   echo 'Le fichier n\'est pas accessible en écriture';
}
?>

Note : Les résultats de cette fonction sont mis en cache. Voyez la fonction clearstatcache() pour plus de détails.

Astuce : Depuis PHP 5.0.0 cette fonction peut aussi être utilisée avec quelques protocoles url. Lisez Annexe M pour une liste des protocoles supportant la famille de fonctionnalités de stat().

Voir aussi is_readable(), file_exists() et fwrite().

PrécédentSommaireSuivant
is_uploaded_fileNiveau supérieuris_writeable

Manuel PHP pour PHP-Nuke © www.stefvar.com

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