SplFileInfo::isFile()

(PHP 5 >= 5.1.2, PHP 7)

Tells if the object references a regular file

说明

publicSplFileInfo::isFile(void): bool

Checks if the file referenced by this SplFileInfo object exists and is a regular file.

参数

此函数没有参数。

返回值

Returns TRUE if the file exists and is a regular file(not a link),FALSE otherwise.

范例

SplFileInfo::isFile() example

<?php
$info = new SplFileInfo(__FILE__);
var_dump($info->isFile());
$info = new SplFileInfo(dirname(__FILE__));
var_dump($info->isFile());
?>

以上例程的输出类似于：

bool(true)
bool(false)

Documentation is a bit misleading.
SplFileInfo->isFile() and other classes (e.g. DirectoryIterator->isFile()) return TRUE for symlinks of files. 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.