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Bug #75473 Strange behavior of file_put_contents
Submitted: 2017-11-02 08:21 UTC Modified: 2017-11-03 14:48 UTC
Votes:1
Avg. Score:3.0 ± 0.0
Reproduced:0 of 0 (0.0%)
From: namonexarap at gmail dot com Assigned:
Status: Not a bug Package: Filesystem function related
PHP Version: 7.1.11 OS: Windows 7
Private report: No CVE-ID: None
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 [2017-11-02 08:21 UTC] namonexarap at gmail dot com 
Description:
------------
See the test script.

Contents of file "my.txt" before running the test script
-------------------------
abc
-------------------------

Test script:
---------------
$data = file_get_contents("my.txt");
$data2 = $data.'Q';
file_put_contents("my.txt", $data2);

Expected result:
----------------
Contents of file "my.txt" after running the test script
-------------------------
abcQ
-------------------------

Actual result:
--------------
Contents of file "my.txt" after running the test script
-------------------------
abcQQ
-------------------------

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 [2017-11-02 08:38 UTC] samayo at 2itb dot com 
This error seems to be working on 7.0 and 7.2 (not tested yet on 7.1)

Can you make sure you are not somehow calling the file twice? use microtime() or other better methods to check if this is a valid bug
 [2017-11-02 08:47 UTC] requinix@php.net
-Status: Open +Status: Feedback
 [2017-11-02 08:47 UTC] requinix@php.net 
Pretty sure you're running it twice.
 [2017-11-03 09:55 UTC] namonexarap at gmail dot com
-Status: Feedback +Status: Closed
 [2017-11-03 09:55 UTC] namonexarap at gmail dot com 
I found a problem in my program. This is not a PHP bug.
 [2017-11-03 10:18 UTC] spam2 at rhsoft dot net 
what i don't understand is why you did
not run the pretend 2 liner you posted as reproducer isolated and if it's only to be sure it shows the problem which it didn't
 [2017-11-03 14:48 UTC] requinix@php.net
-Status: Closed +Status: Not a bug
 
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