Bug #79055 [Ver->Csd]: Typed property become unknown with OPcache file cache
Edit report at https://bugs.php.net/bug.php?id=79055&edit=1
ID: 79055
Updated by: nikic@php.net
Reported by: kentaro at ranvis dot com
Summary: Typed property become unknown with OPcache file
cache
-Status: Verified
+Status: Closed
Type: Bug
Package: opcache
Operating System: Linux
PHP Version: 7.4Git-2020-01-02 (Git)
Block user comment: N
Private report: N
New Comment:
Automatic comment on behalf of nikita.ppv@gmail.com
Revision: http://git.php.net/?p=php-src.git;a=commit;h=8abb2ced399c6869c89783425cfa9483b9ef60cb
Log: Fixed bug #79055
Previous Comments:
------------------------------------------------------------------------
[2020-01-02 14:04:45] nikic@php.net
Fixes for map_ptr crashes when memory protection is enabled:
https://github.com/php/php-src/commit/e576d342bb8a4e8078a52383ed360acf00aefd39
https://github.com/php/php-src/commit/36d5fbbd6bceb1e0e1130bb1fff07a702d548594
------------------------------------------------------------------------
[2020-01-02 12:12:55] nikic@php.net
Also seeing some serious map_ptr issues when mixing file_cache and shm.
------------------------------------------------------------------------
[2020-01-02 10:01:57] kentaro at ranvis dot com
Description:
------------
When OPcache loads cached script from file,
PHP fails to identify typed property specifier in the loaded class, and reports it typed as
"unknown or null".
Fails on PHP-7.4 (8d2b20db58849d1f54303f66656a3776456cbe95),
while succeeds on master (a9c04aee67a1d787101c967b8980d679b1714bf0).
I'm sorry to bother if it's going to be fixed in 7.4 branch too.
Test script:
---------------
mkdir /dev/shm/opcache
./php -n -d extension_dir=modules/ -d zend_extension=opcache -d opcache.enable=1 -d
opcache.enable_cli=1 -d opcache.file_cache=/dev/shm/opcache main.php
# run above script twice
[main.php]
<?php
opcache_reset();
spl_autoload_register(function ($cls) {
echo "$cls\n";
require_once(__DIR__ . "/$cls.php");
});
try {
$c = new C();
$x = new X($c);
echo "Success\n";
} catch (Error $e) {
echo $e->getMessage() . "\n";
}
[C.php]
<?php
class C {}
[X.php]
<?php
class X {
private C $c;
public function __construct(C $c) {
$this->c = $c;
}
}
Expected result:
----------------
$ ./php ...
C
X
Success
$ ./php ...
C
X
Success
Actual result:
--------------
$ ./php ...
C
X
Success
$ ./php ...
C
X
Typed property X::$c must be unknown or null, C used
------------------------------------------------------------------------
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Edit this bug report at https://bugs.php.net/bug.php?id=79055&edit=1
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