SplFileInfo
PHP Manual

SplFileInfo::getRealPath

(PHP 5 >= 5.2.2, PHP 7)

SplFileInfo::getRealPath — Gets absolute path to file

说明

public string SplFileInfo::getRealPath ( void )

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
PHP Manual