dir

(PHP 4, PHP 5, PHP 7, PHP 8)

dir — Retourne une instance de la classe Directory

Description

dir(string $directory, ?resource $context = null): Directory|false

Un mécanisme pseudo-objet permet la lecture d'un dossier. L'argument directory est ouvert.

Liste de paramètres

directory: Le dossier à ouvrir
context: Note: Une resource de contexte de flux.

Valeurs de retour

Retourne une instance de la classe Directory en cas de succès, ou false en cas d'erreur.

Historique

Version	Description
8.0.0	`context` is now nullable.

Exemples

Exemple #1 Exemple avec dir()

Notez la façon dont la valeur de retour de Directory::read() est vérifiée dans l'exemple suivant. Nous testons si la valeur est identique (égale et de même type que -- voyez opérateurs de comparaison pour plus de détails) false sinon, toute entrée dans le nom serait évalué à false causera l'arrêt de la boucle.

<?php
$d = dir("/etc/php5");
echo "Pointeur : " . $d->handle . "\n";
echo "Chemin : " . $d->path . "\n";
while (false !== ($entry = $d->read())) {
   echo $entry."\n";
}
$d->close();
?>

Résultat de l'exemple ci-dessus est similaire à :

Pointeur : Resource id #2
Chemin : /etc/php5
.
..
apache
cgi
cli

Notes

Note:
L'ordre dans lequel les entrées du dossier sont retournées avec la méthode read dépend de votre système.

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User Contributed Notes 6 notes

down

synnus at gmail dot com ¶

3 years ago

<?php

   // simple juste use FilesystemIterator 
   // and you can skip dot and duble dot
   // and use it in array
   // new FilesystemIterator( PATH , OPTIONS ) : array 

$array_file_list = new FilesystemIterator( PATH_ROOT . 'folder/', FilesystemIterator::SKIP_DOTS );

?>

down

fordiman at gmail dot com ¶

18 years ago

This one's pretty nice.  After getting frustrated for hunting down .jpg files in my massive music collection (PHP would run out of memory), I thought there should be a preg_ls function.

function preg_ls ($path=".", $rec=false, $pat="/.*/") {
    // it's going to be used repeatedly, ensure we compile it for speed.
    $pat=preg_replace("|(/.*/[^S]*)|s", "\\1S", $pat);
    //Remove trailing slashes from path
    while (substr($path,-1,1)=="/") $path=substr($path,0,-1);
    //also, make sure that $path is a directory and repair any screwups
    if (!is_dir($path)) $path=dirname($path);
    //assert either truth or falsehoold of $rec, allow no scalars to mean truth
    if ($rec!==true) $rec=false;
    //get a directory handle
    $d=dir($path);
    //initialise the output array
    $ret=Array();
    //loop, reading until there's no more to read
    while (false!==($e=$d->read())) {
        //Ignore parent- and self-links
        if (($e==".")||($e=="..")) continue;
        //If we're working recursively and it's a directory, grab and merge
        if ($rec && is_dir($path."/".$e)) {
            $ret=array_merge($ret,preg_ls($path."/".$e,$rec,$pat));
            continue;
        }
        //If it don't match, exclude it
        if (!preg_match($pat,$e)) continue;
        //In all other cases, add it to the output array
        $ret[]=$path."/".$e;
    }
    //finally, return the array
    return $ret;
}

Not bad for a mere 18 lines, don't you think?

Example use:

foreach (preg_ls("/etc/X11", true, "/.*\.conf/i") as $file) echo $file."\n";

Output: 

/etc/X11/xkb/README.config
/etc/X11/xorg.conf-vesa
/etc/X11/xorg.conf~
/etc/X11/gui.conf
/etc/X11/xorg.conf
/etc/X11/xorg.conf-fbdev

down

samuel dot l at mushicrew dot com ¶

18 years ago

Note that the dir object will use the default encoding for non-unicode programs on Windows with PHP 5.x.

So, if you have a file named with characters unsupported by the current default encoding, the dir->read() method will return a wrong entry.

<?php
/*
** This script is on the same directory than a file named with
** unsupported characters for the current default encoding.
*/
$d = dir("./");
while(false !== ($e = $d->read()))
    echo $e . '<br/>';
?>

This will print a "?" for every unsupported characters, and not the right file name. So take care if you check with is_file/is_dir right after enumerating.

down

Anonymous ¶

18 years ago

Regarding samuel's comment about the dir() function not supporting Unicode properly, it's all in the encoding. The function does NOT internally change Unicode characters into question marks (?), as I was first led to believe. If you simply try to output them in UTF-8, they'll show up just right.

down

synnus at gmail dot com ¶

2 years ago

<?php

/*
  New recursive PHP8 
  gen array path with  FilesystemIterator
*/

$recurcive_path = [];
rdir(path, $recurcive_path);
var_dump($recurcive_path);

function rdir(string $path, array &$recurcive_path): string
{
    if ($path != '') {
        $recurcive_path[] = $path;
        $array_list = iterator_to_array(new FilesystemIterator($path, FilesystemIterator::SKIP_DOTS));
        foreach ($array_list as $name) {
            $pathname = $name->getpathname();
            if(is_dir($pathname) && $name->getfilename()[0] != '.'){
                $path = rdir($pathname,$recurcive_path);
            }
        }
        return $path;
    }
    return '';
}

?>

down

GUILLE@GARGANO ¶

13 years ago

to get a dir of http://www.example.com/directory



<?php

function remotedir($dir)

{

  $dir = str_replace(" ", "%20", html_entity_decode($dir));

  if (($rh = fopen($dir, 'rb')) === FALSE) { return false; }

  $i = 0;

  while (!feof($rh)) {

     $archivos = fgetss($rh);

     $directorio[$i++] = trim( substr($archivos,1,strpos($archivos," ",1)) );

  }

  fclose($rh);

  return $directorio;

}

?>

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