(PHP 5, PHP 7, PHP 8)
DirectoryIterator::isDir — Determine if current DirectoryIterator item is a directory
Determines if the current DirectoryIterator item is a directory.
此函数没有参数。
Returns true if it is a directory, otherwise false
Example #1 DirectoryIterator::isDir() example
This example lists the directories within the directory of the current script.
<?php
$iterator = new DirectoryIterator(dirname(__FILE__));
foreach ($iterator as $fileinfo) {
if ($fileinfo->isDir()) {
echo $fileinfo->getFilename() . "\n";
}
}
?>
以上例程的输出类似于：
. .. apples bananas pears
Documentation is a bit misleading.
DirectoryIterator->isDir() and other classes (e.g. SplFileInfo->isDir()) return TRUE for symlinks of directories. Better use getType() method instead, which returns 'link' for symlinks.
This was reported long time ago - https://bugs.php.net/bug.php?id=72364 , but docs are still not fixed.