我已经尝试了几种方法来在文件系统上使用RecursiveIteratorIterator忽略某些目录.

为了举例说明我想忽略以下目录：/ cache.

我的迭代器看起来像这样：

//$dirname is root

$directory = new RecursiveDirectoryIterator($dirname);

$mega = new RecursiveIteratorIterator($directory, RecursiveIteratorIterator::SELF_FIRST);

foreach ($mega as $fileinfo) {

echo $fileinfo;

}

我已经能够使用pathinfo忽略某些文件扩展名,例如这有效：

$filetypes = array("jpg", "png");

$filetype = pathinfo($fileinfo, PATHINFO_EXTENSION);

foreach ($mega as $fileinfo) {

if (!in_array(strtolower($filetype), $filetypes)) {

echo $fileinfo;

}

}

当我使用PATHINFO_DIRNAME(在数组中使用相应的目录路径)尝试它时,它不起作用,没有错误,它只是不忽略目录.

我也试过使用FilterIterator无济于事,现在我想也许我应该使用RegexIterator.

使用RecursiveIteratorIterator忽略目录的最简单,最有效的方法是什么？

实验没有用.

使用PATHINFO_DIRNAME

$dirignore = array("cache", "cache2");

$directory = new RecursiveDirectoryIterator($dirname);

$mega = new RecursiveIteratorIterator($directory, RecursiveIteratorIterator::SELF_FIRST);

$dirtype = pathinfo($fileinfo, PATHINFO_DIRNAME);

if (!in_array($dirtype), $dirignore)) {

echo $fileinfo; //no worky still echo directories

}

使用FilterIterator(不知道这是如何工作的)

class DirFilter extends FilterIterator

{

public function accept()

{

//return parent::current() != "..\cache\";

$file = $this->getInnerIterator()->current();

if ($file != "..\cache")

return $file->getFilename();

//also tried with same error as below

//return !preg_match('/\cache', $file->getFilename());

}

}

$directory= new RecursiveDirectoryIterator($dirname);

$directory = new DirFilter($directory);

$mega = new RecursiveIteratorIterator($directory, RecursiveIteratorIterator::SELF_FIRST);

// loop

Tis导致错误：需要RecursiveIterator或IteratorAggregate创建它的实例