PHP opendir() to list folders only

问题

I would like to use opendir() to list only the folders in a particular folder (i.e. /www/site/). I would like to exclude files from the list as well at the '.' and '..' folders that appear on a linux folder listing. How would I go about doing this?

回答1:

Check out the PHP docs for readdir(). It includes an example for exactly this.

For completeness:

<?php
if ($handle = opendir('.')) {
    $blacklist = array('.', '..', 'somedir', 'somefile.php');
    while (false !== ($file = readdir($handle))) {
        if (!in_array($file, $blacklist)) {
            echo "$file\n";
        }
    }
    closedir($handle);
}
?>

Simply change opendir('.') to your directory, i.e. opendir('/www/sites/'), and update $blacklist to include the names of files or directory you do not wish to output.

回答2:

foreach(glob('directory/*', GLOB_ONLYDIR) as $dir) {
    $dir = str_replace('directory/', '', $dir);
    echo $dir;
}

You can use simply glob with GLOB_ONLYDIR and then filter resulted directories

回答3:

function scandir_nofolders($d) {
   return array_filter(scandir($d), function ($f) use($d) {
       return ! is_dir($d . DIRECTORY_SEPARATOR . $f);
   });
}

This function returns an array you can iterate over or store somewhere, which is what 99.37% of all programmers using opendir want.

回答4:

List only folders (Directories):

<?php
$Mydir = ''; ### OR MAKE IT 'yourdirectory/';

foreach(glob($Mydir.'*', GLOB_ONLYDIR) as $dir) {
    $dir = str_replace($Mydir, '', $dir);
    echo $dir;
}
?>

回答5:

Try this with glob('*') function

    <?php
    $dirs = array_filter(glob('*'), 'is_dir');
    $i = 1;
    foreach ($dirs as $value) {
        echo $i . '. &nbsp; <a href = "http://localhost/' . $value . '" target = "_blank">' . $value . '</a><br>';
        $i++;
    }
    ?>

Above code worked for me for list out folders in current directory and I further developed code to open each folder in a new tab in same browser. This is shows only directories.

回答6:

Can also be used in forms to create a Dropdown of Folder names (here it is the images folder). Ensures that a user uploading an image pushes it to the correct folder :-)

<select name="imgfolder">
    <option value="genimage">General Image</option>
    <?php
    $Mydir = '../images/'; //  use 'anydirectory_of_your_choice/';

    foreach(glob($Mydir.'*', GLOB_ONLYDIR) as $dir) {
    $dirname =  basename($dir) ;
    echo '<option value="' . $dirname . '">' . $dirname . '</option>'  ; 
    }
    ?>
    </select>

来源：https://stackoverflow.com/questions/6497833/php-opendir-to-list-folders-only

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php

opendir