scandir

(PHP 5)

scandir — List files and directories inside the specified path

Description

array scandir ( string $directory [, int $sorting_order [, resource $context ]] )

Returns an array of files and directories from the directory .

Parameters

directory: The directory that will be scanned.
sorting_order: 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.
context: For a description of the context parameter, refer to the streams section of the manual.

Return Values

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.

Exempel

Example#1 A simple scandir() example


<?php
$dir    = '/tmp';
$files1 = scandir($dir);
$files2 = scandir($dir, 1);

print_r($files1);
print_r($files2);
?>

The above example will output something similar to:

Array
(
    [0] => .
    [1] => ..
    [2] => bar.php
    [3] => foo.txt
    [4] => somedir
)
Array
(
    [0] => somedir
    [1] => foo.txt
    [2] => bar.php
    [3] => ..
    [4] => .
)

Example#2 PHP 4 alternatives to scandir()


<?php
$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:

Array
(
    [0] => .
    [1] => ..
    [2] => bar.php
    [3] => foo.txt
    [4] => somedir
)
Array
(
    [0] => somedir
    [1] => foo.txt
    [2] => bar.php
    [3] => ..
    [4] => .
)

Notes

Tip

Du kan använda en URL som filnamn till den här funktionen om direktivet fopen wrappers är påslaget. Se fopen() för fler detaljer kring hur du specificerar filnamnet och för en List of Supported Protocols/Wrapperslista över stödda URL-protkoll.

Se också

Directories

DOM