php - RecursiveDirectoryIterator 删除点文件夹

Question

目前我有下面的代码，什么是我能够在下面的代码中设置标志以便我可以使用 ::SKIP_DOTS 的最佳方式？

代码:

  $folder = 'images/banner_img';?>

    <?php foreach( new RecursiveIteratorIterator(new RecursiveDirectoryIterator($folder)) as $filename): ?>
      <?php $fileTypes = array("db"); 
            $fileType  = pathinfo($filename,PATHINFO_EXTENSION);

            if(!in_array(strtolower($fileType), $fileTypes)):?>


         <img src="<?php echo $filename; ?>" alt="" title="" data-thumb="<?php echo $filename;?>" />

       <?php endif;?>

    <?php endforeach;?>

Answer 1

设置 RecursiveDirectoryIterator::SKIP_DOTS as an option (in the second parameter) new RecursiveDirectoryIterator() 应该足以处理您当前的代码。

对于 PHP 5.3+，您可以选择将 RecursiveDirectoryIterator 声明为其自己的变量，然后对该变量调用方法:

$iterator = new RecursiveDirectoryIterator($folder);
$iterator->setFlags(RecursiveDirectoryIterator::SKIP_DOTS);
// Still need to pass $iterator to a RecursiveIteratorIterator...

setFlags() 是一种方法 inherited from the FilesystemIterator base class .

但由于您已经在使用模板格式 foreach:/endforeach; 样式，因此只在嵌套声明中执行此操作而不是使用其他变量是有意义的。

<!-- Instead, stick with your current iterator declaration and -->
<!-- add RecursiveDirectoryIterator::SKIP_DOTS as the 2nd param to its constructor -->
<?php foreach( new RecursiveIteratorIterator(new RecursiveDirectoryIterator($folder, RecursiveDirectoryIterator::SKIP_DOTS)) as $filename): ?>
<!-------------------------------------------------------------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -->