update : 2015.11.03
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Gets absolute path to file
SplFileInfo
PHP Manual

SplFileInfo::getRealPath

(PHP 5 >= 5.2.2)

SplFileInfo::getRealPath — Gets absolute path to file

설명

public string SplFileInfo::getRealPath ( void )

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

인수

이 함수는 인수가 없습니다.

반환값

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

예제

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());

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

위 예제의 출력 예시:

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

참고

SplFileInfo
PHP Manual