DirectoryIterator::isDir()

(PHP 5,PHP 7)

Determine if current DirectoryIterator item is a directory

说明

publicDirectoryIterator::isDir(void) : bool

Determines if the currentDirectoryIteratoritem is a directory.

参数

此函数没有参数。

返回值

ReturnsTRUEif it is a directory,otherwiseFALSE

范例

Example#1DirectoryIterator::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

参见

• DirectoryIterator::getType() Determine the type of the current DirectoryIterator item
• DirectoryIterator::isDot() Determine if current DirectoryIterator item is'.'or'..'
• DirectoryIterator::isFile() Determine if current DirectoryIterator item is a regular file
• DirectoryIterator::isLink() Determine if current DirectoryIterator item is a symbolic link

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.