PHP scandir function

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scandir

(PHP 5)

Returns an array of files and directories from the
directory.

The directory that will be scanned.

By default, the sorted order is alphabetical in ascending order. If
the optional sorting_order is used (set to 1),
then the sort order is alphabetical in descending order.

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

Returns an array of filenames on success, or FALSE on
failure. If directory is not a directory, then
boolean FALSE is returned, and an error of level
E_WARNING is generated.

Example 1. A simple scandir() example

$dir    = '/tmp';
$files1 = scandir($dir);
$files2 = scandir($dir, 1);
 
print_r($files1);
print_r($files2);

The above example will output
something similar to:

Example 2. PHP 4 alternatives to scandir()

$dir = "/tmp";
$dh  = opendir($dir);
while (false !== ($filename = readdir($dh))) {
    $files[] = $filename;
}
 
sort($files);
 
print_r($files);
 
rsort($files);
 
print_r($files);

The above example will output
something similar to:

Tip: You can use a URL as a
filename with this function if the fopen wrappers have been enabled.
See fopen() for more details on how to specify
the filename and Appendix N for a list of supported
URL protocols.