Bug #65915 [Com]: Inconsistent results with require return value
Edit report at https://bugs.php.net/bug.php?id=65915&edit=1
ID: 65915
Comment by: Terry at ellisons dot org dot uk
Reported by: arjen at react dot com
Summary: Inconsistent results with require return value
Status: Assigned
Type: Bug
Package: opcache
Operating System: Linux
PHP Version: 5.5.4
Assigned To: dmitry
Block user comment: N
Private report: N
New Comment:
This is quite a subtle problem, that I will document and post a fix back here.
Previous Comments:
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[2013-11-04 14:42:29] zoeslam at gmail dot com
This bug is likely related to https://bugs.php.net/bug.php?id=65559
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[2013-10-16 13:30:37] arjen at react dot com
Description:
------------
opcache seems to 'cache' the return value of a require statement, even if
opcache_invalidate or opcache_reset is called. A test script which returns a closure is written to
disk, required and result method is called. File is overwritten and called again. Output should
differ, but is the same. A helper var written to the same file IS correctly updated.
Result is wrong most of the times.
php -d zend_extension=/usr/lib/php/modules/opcache.so -d opcache.enabled=1 -d opcache.enable_cli=1
-d opcache.optimization_level=0xffffffff public_html/php/opcache.php
opcache.optimization_level=0x00000000 also fails.
Test script:
---------------
<?php
$tmp = tempnam(sys_get_temp_dir(), 'test');
file_put_contents($tmp, '<?php $s = ' . microtime(true) . ';return function(){
return "a";};');
$f = require $tmp;
var_dump($s, $f());
sleep(2);
file_put_contents($tmp, '<?php $s = ' . microtime(true) . ';return function(){
return "ab";};');
opcache_invalidate($tmp, true);
$f = require $tmp;
var_dump($s, $f());
unset($f);
opcache_reset();
$f = require $tmp;
var_dump($s, $f());
Expected result:
----------------
double(1381930079.4517)
string(1) "a"
double(1381930079.452)
string(2) "ab"
double(1381930079.452)
string(2) "ab"
Actual result:
--------------
double(1381930079.4517)
string(1) "a"
double(1381930079.452)
string(1) "a"
double(1381930079.452)
string(1) "a"
------------------------------------------------------------------------
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Edit this bug report at https://bugs.php.net/bug.php?id=65915&edit=1
Thread (8 messages)