Some strange bug

I have code:

echo 'php_sapi_name: '.php_sapi_name().PHP_EOL;
echo 'max_input_time: '.ini_get('max_input_time').PHP_EOL;
echo 'max_execution_time: '.ini_get('max_execution_time').PHP_EOL;

set_time_limit(2);

echo 'max_input_time: '.ini_get('max_input_time').PHP_EOL;
echo 'max_execution_time: '.ini_get('max_execution_time').PHP_EOL;

sleep(3);

echo 'how it works?'.PHP_EOL;

And it's output

php_sapi_name: cli
max_input_time: -1
max_execution_time: 0
max_input_time: -1
max_execution_time: 2
how it works?

or

php_sapi_name: fpm-fcgimax_input_time: 60max_execution_time: 30max_input_time:
60max_execution_time: 2how it works?

I have no idea why this is happening. On Windows PHP 5.4.13 (cli)(built:
Mar 15 2013 02:07:14) it writes (Maximum execution time of 2 seconds
exceeded....)

Some info about my pc:
php -v:
PHP 5.6.7-1 (cli) (built: Mar 24 2015 12:30:15)
Copyright (c) 1997-2015 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2015 Zend Technologies
with Zend OPcache v7.0.4-dev, Copyright (c) 1999-2015, by Zend
Technologies
with Xdebug v2.2.5, Copyright (c) 2002-2014, by Derick Rethans

uname -a:
Linux andrew-deb 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt9-2 (2015-04-13)
x86_64 GNU/Linux

php -i:
http://pastebin.com/vzeHZJn1

This is a bug or something I do not know about php?

It is very informative, but not resolve the problem, php completely ignored
my max_execution_teme setup with any SAPI, in all cases

2015-06-11 14:57 GMT+03:00 Andrew Kluev kluev.andrew@gmail.com:

And php7 not working too.....

php7 -v
PHP 7.0.0-dev (cli) (built: Mar 30 2015 12:26:36) (DEBUG)
Copyright (c) 1997-2015 The PHP Group
Zend Engine v3.0.0-dev, Copyright (c) 1998-2015 Zend Technologies

2015-06-11 14:55 GMT+03:00 Andrew Kluev kluev.andrew@gmail.com:

It is very informative, but not resolve the problem, php completely
ignored my max_execution_teme setup with any SAPI, in all cases

2015-06-11 14:42 GMT+03:00 Johannes Schlüter johannes@schlueters.de:

sleep(3);
[...]
This is a bug or something I do not know about php?

Max execution time is working a bit dependent on the operating system.
On Windows it is using the elapsed time ("wall clock time") on Linux
systems the CPU time. Thus on windows the sleep counts whereas on Linux
no time is spent during sleep(). The same difference happens when other
processes are on CPU and your PHP script was taken off CPU for other
reasons.

For details see MSDN on CreateTimerQueueTimer for Windows and the
setitimer man page with (ITIMER_PROF option) for Linux/Unix for a start.

https://msdn.microsoft.com/en-us/library/windows/desktop/ms682485%
28v=vs.85%29.aspx
https://msdn.microsoft.com/en-us/library/windows/desktop/ms682485%28v=vs.85%29.aspx
http://linux.die.net/man/2/setitimer

johannes

Wow! Now I understand. Thank you for the explanation

2015-06-11 15:10 GMT+03:00 Johannes Schlüter johannes@schlueters.de:

As said: It looks at CPU time. sleep doesn't require CPU time. Try with
something like while(true){} which keeps PHP on CPU

$ cat test.php
<?php
echo 'php_sapi_name: '.php_sapi_name().PHP_EOL;
echo 'max_input_time: '.ini_get('max_input_time').PHP_EOL;
echo 'max_execution_time: '.ini_get('max_execution_time').PHP_EOL;

set_time_limit(2);

echo 'max_input_time: '.ini_get('max_input_time').PHP_EOL;
echo 'max_execution_time: '.ini_get('max_execution_time').PHP_EOL;

while (true) {}

echo 'how it works?'.PHP_EOL;

$ ./sapi/cli/php -v
PHP 7.0.0-dev (cli) (built: Jun 11 2015 14:04:07) (DEBUG)
Copyright (c) 1997-2015 The PHP Group
Zend Engine v3.0.0-dev, Copyright (c) 1998-2015 Zend Technologies

$ time ./sapi/cli/php test.php
php_sapi_name: cli
max_input_time: -1
max_execution_time: 0
max_input_time: -1
max_execution_time: 2

Fatal error: Maximum execution time of 2 seconds exceeded in test.php on
line 11

real 0m2.062s
user 0m2.005s
sys 0m0.016s

It is very informative, but not resolve the problem, php completely
ignored my max_execution_teme setup with any SAPI, in all cases

2015-06-11 14:42 GMT+03:00 Johannes Schlüter johannes@schlueters.de:

    > sleep(3);
    [...]
    > This is a bug or something I do not know about php?

    Max execution time is working a bit dependent on the operating
    system.
    On Windows it is using the elapsed time ("wall clock time") on
    Linux
    systems the CPU time. Thus on windows the sleep counts whereas
    on Linux
    no time is spent during `sleep()`. The same difference happens
    when other
    processes are on CPU and your PHP script was taken off CPU for
    other
    reasons.

    For details see MSDN on CreateTimerQueueTimer for Windows and
    the
    setitimer man page with (ITIMER_PROF option) for Linux/Unix
    for a start.

https://msdn.microsoft.com/en-us/library/windows/desktop/ms682485%

    28v=vs.85%29.aspx
    http://linux.die.net/man/2/setitimer


    johannes