Rechercher une fonction PHP

readdir

(PHP 4, PHP 5, PHP 7)

readdirRead entry from directory handle

Description

readdir ([ resource $dir_handle ] ) : string

Returns the name of the next entry in the directory. The entries are returned in the order in which they are stored by the filesystem.

PHP: readdir - Manual Home of Manuel PHP  Contents Haut

Parameters

dir_handle

The directory handle resource previously opened with opendir(). If the directory handle is not specified, the last link opened by opendir() is assumed.

PHP: readdir - Manual Home of Manuel PHP  Contents Haut

Return Values

Returns the entry name on success or FALSE on failure.

Warning

This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE. Please read the section on Booleans for more information. Use the === operator for testing the return value of this function.

PHP: readdir - Manual Home of Manuel PHP  Contents Haut

Examples

Example #1 List all entries in a directory

Please note the fashion in which readdir()'s return value is checked in the examples below. We are explicitly testing whether the return value is identical to (equal to and of the same type as--see Comparison Operators for more information) FALSE since otherwise, any directory entry whose name evaluates to FALSE will stop the loop (e.g. a directory named "0").

<?php

if ($handle opendir('/path/to/files')) {
    echo 
"Directory handle: $handle\n";
    echo 
"Entries:\n";

    
/* This is the correct way to loop over the directory. */
    
while (false !== ($entry readdir($handle))) {
        echo 
"$entry\n";
    }

    
/* This is the WRONG way to loop over the directory. */
    
while ($entry readdir($handle)) {
        echo 
"$entry\n";
    }

    
closedir($handle);
}
?>

Example #2 List all entries in the current directory and strip out . and ..

<?php
if ($handle opendir('.')) {
    while (
false !== ($entry readdir($handle))) {
        if (
$entry != "." && $entry != "..") {
            echo 
"$entry\n";
        }
    }
    
closedir($handle);
}
?>

PHP: readdir - Manual Home of Manuel PHP  Contents Haut

See Also

  • is_dir() - Tells whether the filename is a directory
  • glob() - Find pathnames matching a pattern
  • opendir() - Open directory handle
  • scandir() - List files and directories inside the specified path

Find a PHP function

English translation

You have asked to visit this site in English. For now, only the interface is translated, but not all the content yet.

If you want to help me in translations, your contribution is welcome. All you need to do is register on the site, and send me a message asking me to add you to the group of translators, which will give you the opportunity to translate the pages you want. A link at the bottom of each translated page indicates that you are the translator, and has a link to your profile.

Thank you in advance.

Document created the 30/01/2003, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/php-rf-function.readdir.html

The infobrol is a personal site whose content is my sole responsibility. The text is available under CreativeCommons license (BY-NC-SA). More info on the terms of use and the author.

References

  1. View the html document Language of the document:fr Manuel PHP : http://php.net

These references and links indicate documents consulted during the writing of this page, or which may provide additional information, but the authors of these sources can not be held responsible for the content of this page.
The author This site is solely responsible for the way in which the various concepts, and the freedoms that are taken with the reference works, are presented here. Remember that you must cross multiple source information to reduce the risk of errors.

Contents Haut