How can one ensure that files are listed in alphabetical order when using the readdir function in PHP?

When using the readdir function in PHP to read files from a directory, the files are not automatically sorted in alphabetical order. To ensure that files are listed in alphabetical order, you can store the file names in an array, sort the array using the sort function, and then iterate over the sorted array to display the files. 

$dir = '/path/to/directory';
$files = array();

if ($handle = opendir($dir)) {
    while (false !== ($file = readdir($handle))) {
        if ($file != "." && $file != "..") {
            $files[] = $file;
        }
    }
    closedir($handle);
}

sort($files);

foreach ($files as $file) {
    echo $file . "<br>";
}

Keywords

readdir alphabetical order sorting PHP file listing

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