Bug #69990 [Opn->Fbk]: file_get_contents broken on symlinks
Edit report at https://bugs.php.net/bug.php?id=69990&edit=1
ID: 69990
Updated by: cmb@php.net
Reported by: michael dot mckeever at bosch dot com
Summary: file_get_contents broken on symlinks
-Status: Open
+Status: Feedback
Type: Bug
Package: *Directory/Filesystem functions
Operating System: Windows 7
PHP Version: 5.5.26
-Assigned To:
+Assigned To: cmb
Block user comment: N
Private report: N
Previous Comments:
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[2021-08-19 16:32:44] cmb@php.net
Is this still an issue with any of the actively supported PHP
versions[1]? If so, are the link targets absolute paths?
[1] <https://www.php.net/supported-versions.php>
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[2015-09-02 13:08:16] rombismith at cuvox dot de
We're having exactly the same issue, but not on a Win7 but on a WinServer 2008 and WinServer
2008R2.
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[2015-07-03 18:01:12] michael dot mckeever at bosch dot com
Description:
------------
I used:
- php 5.5.26 ts 32bit VC11 as SAPI
- apache 2.4.12 32bit VC11
- windows 7 sp1
On Windows 7 (have only tested it on Windows 7) the file_get_contents function does sometimes return
false instead of returning the actual file content when used on symlinks. This happens only in
conjunction with Apache. The cli versions are not affected. All types of links are affected:
- mklink
- mklink /J
- mklink /D
To repoduce the bug create the three symlink types above to a file of your choice containing the
string "asdf" and apply the paths to your the test script below and use the abs.exe
command (shipped with apache) to simulate 800 request with a concurency of 200 users:
abs.exe -n 800 -c 200 http://localhost/yourTestScript.php
If needed I can provide a fully virtual machine with the whole reproducable scenario in it (virtual
box).
Test script:
---------------
$files =
[
"file" => "C:/Development/phpdir/phpfile.txt",
"filelink" => "C:/Development/phpdir/phpfilelink.txt",
"dirlink" => "C:/Development/phpdirlink/phpfile.txt",
"dirjunc" => "C:/Development/phpdirjunc/phpfile.txt",
];
foreach($files as $linkType => $filePath) {
if( @file_get_contents($filePath) !== "asdf" ) {
if( @file_get_contents("C:/Development/$linkType") === false )
file_put_contents("C:/Development/$linkType", 0);
file_put_contents("C:/Development/$linkType",
((int)file_get_contents("C:/Development/$linkType"))+1);
}
}
Expected result:
----------------
No files should appear in the directory "C:/Development/".
Actual result:
--------------
There are laying three files namely 'filelink', 'dirlink' and
'dirjunc' containing the number of file_get_contents failing to succeed.
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Edit this bug report at https://bugs.php.net/bug.php?id=69990&edit=1
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