使用PHP递归计数文件

function countFiles($dir) {
    $count = 0;
    $cdir = scandir($dir);
    foreach ($cdir as $key => $value) {
        if (!in_array($value, array(".", ".."))) {
            if (is_dir($dir . DIRECTORY_SEPARATOR . $value)) {
                $count += countFiles($dir . DIRECTORY_SEPARATOR . $value);
            } else {
                $count++;
            }
        }
    }
    return $count;
}

$dir = "path/to/directory";
$fileCount = countFiles($dir);
echo "There are $fileCount files in the directory.";