Bug #69990 [Com]: file_get_contents broken on symlinks

Edit report at https://bugs.php.net/bug.php?id=69990&edit=1 ID: 69990 Comment by: michael dot mckeever at bosch dot com Reported by: michael dot mckeever at bosch dot com Summary: file_get_contents broken on symlinks Status: Feedback Type: Bug Package: *Directory/Filesystem functions Operating System: Windows 7 PHP Version: 5.5.26 Assigned To: cmb Block user comment: N Private report: N New Comment: I'll try to reproduce this bug in a VM with Windows10. I can't tell you if the bug is gone. Please give me approx. 3 days. I'll report back. Previous Comments: ------------------------------------------------------------------------ [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> ------------------------------------------------------------------------ [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. ------------------------------------------------------------------------ [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. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=69990&edit=1