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Doc Bug #81677 realpath result is cached
Submitted: 2021-11-30 17:31 UTC Modified: 2021-12-01 10:50 UTC
Votes:3
Avg. Score:2.7 ± 0.5
Reproduced:1 of 2 (50.0%)
Same Version:0 (0.0%)
Same OS:1 (100.0%)
From: jozef dot briss at gmail dot com Assigned:
Status: Verified Package: Filesystem function related
PHP Version: 7.4.26 OS: Linux
Private report: No CVE-ID: None
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 [2021-11-30 17:31 UTC] jozef dot briss at gmail dot com 
Description:
------------
Realpath function is using realpath_cache. This is not documented anywhere.


Test script:
---------------
<?php

exec("ln -nsf test1 test");
echo realpath("test") . "\n";
exec("ln -nsf test2 test");
echo realpath("test") . "\n";

Expected result:
----------------
/home/****/realpath/test1
/home/****/realpath/test2

Actual result:
--------------
/home/****/realpath/test1
/home/****/realpath/test1

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 [2021-12-01 10:50 UTC] cmb@php.net
-Status: Open +Status: Verified -Type: Bug +Type: Documentation Problem
 [2021-12-01 10:50 UTC] cmb@php.net 
> Realpath function is using realpath_cache.

While this shouldn't be surprising, I agree that the documentation
of the realpath cache (and also the stat chache) could be
improved.
 [2022-11-28 03:36 UTC] ramaha256 at gmail dot com 
realpath_cache is the system that allows php to cache paths to locations of files/directories you are using to minimize expensive disk lookups.
(https://www.myhtspace.org/)github.com
 [2022-12-23 10:02 UTC] janettabloomquist at gmail dot com 
realpath_cache is the system that allows php to cache paths to locations of files/directories you are using to minimize expensive disk lookups. It could possibly greatly improve performance of you PHP application/site if you use alot of relative file paths PHP has to parse/lookup each time you reference them. 
(https://www.mysanfordchart.net/)github.com
 [2023-04-26 15:31 UTC] mysanfordchart dot me at gmail dot com 
Exactly what I needed! You just saved me several hours. Thanks!

https://mysanfordchart.me/)github.com
 [2023-05-03 02:27 UTC] kevin120 at aol dot com 
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 [2023-05-29 08:24 UTC] myfordbenefits dot one at gmail dot com 
I am also  facing the same issues and looking for a proper guidance.Maybe someone will help me as well. Thank you 
https://www.myfordbenefits.me/)github.com
 
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