php遍歷刪除整個目錄及文件

我們可以使用RecursiveDirectoryIterator 和 RecursiveIteratorIterator刪除目錄和子目錄及文件，子目錄將先與父目錄刪除

<?php
function cleanup_directory($dir) {
    $iter = new RecursiveDirectoryIterator($dir);
    foreach (new RecursiveIteratorIterator($iter, RecursiveIteratorIterator::CHILD_FIRST)
  as $f) {
        if ($f->isDir()) {
            rmdir($f->getPathname());
        } else {
            unlink($f->getPathname());
        }
    }
    rmdir($dir);
}

cleanup_directory('c:\wamp\junk');
?></pre>