SplFileInfo::getRealPath

(PHP 5 >= 5.2.2, PHP 7, PHP 8)

SplFileInfo::getRealPath — Gets absolute path to file

说明

public SplFileInfo::getRealPath ( ) : string

This method expands all symbolic links, resolves relative references and returns the real path to the file.

参数

此函数没有参数。

返回值

Returns the path to the file, or false if the file does not exist.

范例

Example #1 SplFileInfo::getRealPath() example


<?php
$info = new SplFileInfo('/..//./../../'.__FILE__);
var_dump($info->getRealPath());

$info = new SplFileInfo('/tmp');
var_dump($info->getRealPath());

$info = new SplFileInfo('/I/Do/Not/Exist');
var_dump($info->getRealPath());

$info = new SplFileInfo('php://output');
var_dump($info->getRealPath());

$info = new SplFileInfo("");
var_dump($info->getRealPath());
?>

以上例程的输出类似于：

string(28) "/private/tmp/phptempfile.php" 
string(12) "/private/tmp"
bool(false)
bool(false)
string(12) "/private/tmp"

参见

SplFileInfo::isLink() - Tells if the file is a link
realpath() - 返回规范化的绝对路径名

User Contributed Notes

giel at berkers dot online 21-Feb-2018 10:09


Note that due to realpath caching this method will return false when the file has been renamed or unlinked by other processes.



Example:



<?php

$info = new SplFileInfo('example.php');

$info->getRealPath();   // /path/to/example.php



rename('example.php', 'foobar.php');



$info->getRealPath();   // false

?>