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Request #81322 file_put_contents should support LOCK_NB
Submitted: 2021-08-02 12:46 UTC Modified: -
From: divinity76 at gmail dot com Assigned:
Status: Open Package: *Directory/Filesystem functions
PHP Version: Next Minor Version OS:
Private report: No CVE-ID: None
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 [2021-08-02 12:46 UTC] divinity76 at gmail dot com
Description:
------------
file_put_contents should support LOCK_NB just like it supports LOCK_EX.

luckily file_put_contents does not currently support any flags with the same value as LOCK_NB( LOCK_NB is 4 and FILE_USE_INCLUDE_PATH is 1 and FILE_APPEND is 8)

Test script:
---------------
<?php
$file=__FILE__;
$fp=fopen($file,"rb");
flock($fp,LOCK_EX);
var_dump(file_put_contents($file,"test",LOCK_EX|LOCK_NB));

Expected result:
----------------
bool(false) and perhaps some error about being unable to lock.

Actual result:
--------------
script hangs indefinitely, because file_put_contents doesn't understand LOCK_NB

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