opendir

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

opendirOpen directory handle

Description

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

Opens up a directory handle to be used in subsequent closedir(), readdir(), and rewinddir() calls.

Parameters

directory

The directory path that is to be opened

context

For a description of the context parameter, refer to the streams section of the manual.

Return Values

Returns a directory handle resource on success, or false on failure

Errors/Exceptions

Upon failure, an E_WARNING is emitted.

This may happen if directory is not a valid directory, the directory can not be opened due to permission restrictions, or due to filesystem errors.

Changelog

Version Description
8.0.0 context is now nullable.

Examples

Example #1 opendir() example

<?php
$dir 
"/etc/php5/";

// Open a known directory, and proceed to read its contents
if (is_dir($dir)) {
    if (
$dh opendir($dir)) {
        while ((
$file readdir($dh)) !== false) {
            echo 
"filename: $file : filetype: " filetype($dir $file) . "\n";
        }
        
closedir($dh);
    }
}
?>

The above example will output something similar to:

filename: . : filetype: dir
filename: .. : filetype: dir
filename: apache : filetype: dir
filename: cgi : filetype: dir
filename: cli : filetype: dir

See Also

  • is_dir() - Tells whether the filename is a directory
  • readdir() - Read entry from directory handle
  • dir() - Return an instance of the Directory class

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