(PHP 5 >= 5.1.2, PHP 7, PHP 8)
SplFileInfo::isDir — Tells if the file is a directory
This method can be used to determine if the file is a directory.
此函数没有参数。
Returns true if a directory, false otherwise.
示例 #1 SplFileInfo::isDir() example
<?php
$d = new SplFileInfo(dirname(__FILE__));
var_dump($d->isDir());
$d = new SplFileInfo(__FILE__);
var_dump($d->isDir());
?>
以上例程的输出类似于：
bool(true) bool(false)