Edit report at https://bugs.php.net/bug.php?id=62763&edit=1
ID: 62763
Comment by: valentiny510 at yahoo dot es
Reported by: valentiny510 at yahoo dot es
Summary: register_shutdown_function and extending class
Status: Verified
Type: Bug
Package: Scripting Engine problem
Operating System: XP
PHP Version: 5.4.5
Block user comment: N
Private report: N
New Comment:
P.S. 2 :D Sorry.
The errors...
[07-Aug-2012 05:39:51 UTC] PHP Warning: (Registered shutdown functions) Unable
to call test1::shutdown() - function does not exist in Unknown on line 0
[07-Aug-2012 05:39:51 UTC] PHP Warning: (Registered shutdown functions) Unable
to call test2::shutdown() - function does not exist in Unknown on line 0
are shown when the function "shutdown" is private.
If I "exit" it crush the server but if I "echo" the result is
Shutdown
Shutdown
test2::__destruct
Now.. why it output twice when I dont even called parent::__construct ?
If I add an empty __construct function to the child the output is
test2::__destruct
Shutdown
Note also the called order...
Previous Comments:
------------------------------------------------------------------------
[2012-08-07 02:10:36] valentiny510 at yahoo dot es
Oh yes, sorry, the function called was just "shut" not "shutdown", sorry for
that, the test script was writed with some hurry on the web, it was not copied
from the actual script, Thank you Aharvey.
------------------------------------------------------------------------
[2012-08-07 01:33:19] ahar...@php.net
I get the following error with a debug build of the current 5.4 tree (Linux,
x86):
adam@eden:~$ php /tmp/test.php
Shutdown
test2::__destruct/home/adam/trees/php-src/5.4/Zend/zend_hash.c(551) :
ht=0xb6731b50 is being destroyed
I had to alter the script slightly to make it run; what I ended up using was:
<?php
class test1 {
public function __construct() {
register_shutdown_function(array($this, 'shutdown')); }
public function shutdown() { exit ("Shutdown\n"); }
}
class test2 extends test1 {
public function __destruct() { exit (__METHOD__); }
}
new test1;
new test2;
?>
The backtrace at the point of the consistency check:
Breakpoint 1, zend_hash_destroy (ht=0xb6fb2b1c) at /home/adam/trees/php-
src/5.4/Zend/zend_hash.c:551
551 IS_CONSISTENT(ht);
(gdb) bt
#0 zend_hash_destroy (ht=0xb6fb2b1c) at /home/adam/trees/php-
src/5.4/Zend/zend_hash.c:551
#1 0x084218d5 in php_free_shutdown_functions () at /home/adam/trees/php-
src/5.4/ext/standard/basic_functions.c:5043
#2 0x0842188f in php_call_shutdown_functions () at /home/adam/trees/php-
src/5.4/ext/standard/basic_functions.c:5034
#3 0x0853a400 in php_request_shutdown (dummy=0x0) at /home/adam/trees/php-
src/5.4/main/main.c:1718
#4 0x086d3408 in do_cli (argc=2, argv=0xbffff3a4) at /home/adam/trees/php-
src/5.4/sapi/cli/php_cli.c:1171
#5 0x086d3c03 in main (argc=2, argv=0xbffff3a4) at /home/adam/trees/php-
src/5.4/sapi/cli/php_cli.c:1364
------------------------------------------------------------------------
[2012-08-06 22:53:16] valentiny510 at yahoo dot es
P.S. The functions both "exit" and with "echo" I got this errors:
[06-Aug-2012 23:48:50 UTC] PHP Warning: (Registered shutdown functions) Unable
to call test1::shutdown() - function does not exist in Unknown on line 0
[06-Aug-2012 23:48:50 UTC] PHP Warning: (Registered shutdown functions) Unable
to call test2::shutdown() - function does not exist in Unknown on line 0
------------------------------------------------------------------------
[2012-08-06 22:20:04] valentiny510 at yahoo dot es
Description:
------------
Is a little hard to explain becouse are many scenarios where the shutdown
function fail or the php doesn't handle correctly the errors but the most
simplest method is shown bellow.
Normally, without the register_shutdown_function works well, but if I add the
function into the __construct and the child class does not have defined the
__construct then fail.
To work well I need to add the __construct function to the child, but if I
dont, why the php doesnt throw me an error with $file, $line etc ?
I have many scripts and different scenarios where fail but this I think is the
worst becouse it crush all the server.
Sorry but I cant provide any backtrace in this moment
Test script:
---------------
class test1 {
public function __construct() {
register_shutdown_function(array($this, 'shut')); }
public function shutdown() { exit ('Shutdown'); }
}
class test2 extends test1 {
public function __destruct() { exit (__METHOD__); }
}
new test1;
new test2;
Expected result:
----------------
test2::__destruct
Shutdown
or
Shutdown
test2::__destruct
depending of the priority
Actual result:
--------------
All server crush and restart
------------------------------------------------------------------------
--
Edit this bug report at https://bugs.php.net/bug.php?id=62763&edit=1
