pcntl“出于安全原因”在Ubuntu上不起作用

php ubuntu pcntl

2022-08-30 17:35:25

我已经在Ubuntu 32位12.10上运行的PHP 5.4.6上安装了pcntl，使用本文。

它根本不顺利，因为在编译后，在运行时我遇到了以下错误。每次我尝试分叉一个子进程时，我都会收到一条警告，上面写着：make test

警告：出于安全原因，pcntl_fork（）已在第 8 行的 /var/www/mydev/dev/mailServiceTest.php 中禁用

我已经在网上搜索了一个解决方案，但不幸的是，我没有在其他地方找到任何提及这个问题的地方。

    Build complete.
Don't forget to run 'make test'.
PHP Warning:  Module 'pcntl' already loaded in Unknown on line 0
PHP Warning:  Module 'pcntl' already loaded in Unknown on line 0

=====================================================================
PHP         : /usr/bin/php 
Warning: Module 'pcntl' already loaded in Unknown on line 0

PHP_SAPI    : cli
PHP_VERSION : 5.4.6-1ubuntu1.2
ZEND_VERSION: 2.4.0
PHP_OS      : Linux - Linux oleg-Lenovo-G580 3.5.0-26-generic #42-Ubuntu SMP Fri Mar 8 23:20:06 UTC 2013 i686
INI actual  : /php/php-5.4.6/ext/pcntl/tmp-php.ini
More .INIs  :  
CWD         : /php/php-5.4.6/ext/pcntl
Extra dirs  : 
VALGRIND    : Not used
=====================================================================
TIME START 2013-04-28 12:11:03
=====================================================================
FAIL Test pcntl wait functionality [tests/001.phpt] 
FAIL pcntl: pcntl_sigprocmask(), pcntl_sigwaitinfo(), pcntl_sigtimedwait() [tests/002.phpt] 
FAIL pcntl: SIG_BLOCK, SIG_UNBLOCK, SIG_SETMASK [tests/003.phpt] 
FAIL Bug #47566 (return value of pcntl_wexitstatus()) [tests/bug47566.phpt] 
FAIL pcntl_alarm() [tests/pcntl_alarm.phpt] 
FAIL pcntl_exec() [tests/pcntl_exec.phpt] 
FAIL pcntl_exec() 2 [tests/pcntl_exec_2.phpt] 
FAIL pcntl_exec() 3 [tests/pcntl_exec_3.phpt] 
FAIL Test function pcntl_fork() by calling it with its expected arguments [tests/pcntl_fork_basic.phpt] 
FAIL Test function pcntl_fork() by testing the process isolation in the forking hierarchy father -> son -> grandson where father can not knows his grandson [tests/pcntl_fork_variation.phpt] 
FAIL Test pcntl_get_last_error() [tests/pcntl_get_last_error.phpt] 
FAIL pcntl_signal() [tests/pcntl_signal.phpt] 
FAIL pcnt_signal_dispatch() [tests/pcntl_signal_dispatch.phpt] 
FAIL pcntl_wait() [tests/pcntl_wait.phpt] 
FAIL Closures as a signal handler [tests/signal_closure_handler.phpt] 
=====================================================================
TIME END 2013-04-28 12:11:07

=====================================================================
TEST RESULT SUMMARY
---------------------------------------------------------------------
Exts skipped    :    0
Exts tested     :   44
---------------------------------------------------------------------

Number of tests :   15                15
Tests skipped   :    0 (  0.0%) --------
Tests warned    :    0 (  0.0%) (  0.0%)
Tests failed    :   15 (100.0%) (100.0%)
Expected fail   :    0 (  0.0%) (  0.0%)
Tests passed    :    0 (  0.0%) (  0.0%)
---------------------------------------------------------------------
Time taken      :    4 seconds
=====================================================================

=====================================================================
FAILED TEST SUMMARY
---------------------------------------------------------------------
Test pcntl wait functionality [tests/001.phpt]
pcntl: pcntl_sigprocmask(), pcntl_sigwaitinfo(), pcntl_sigtimedwait() [tests/002.phpt]
pcntl: SIG_BLOCK, SIG_UNBLOCK, SIG_SETMASK [tests/003.phpt]
Bug #47566 (return value of pcntl_wexitstatus()) [tests/bug47566.phpt]
pcntl_alarm() [tests/pcntl_alarm.phpt]
pcntl_exec() [tests/pcntl_exec.phpt]
pcntl_exec() 2 [tests/pcntl_exec_2.phpt]
pcntl_exec() 3 [tests/pcntl_exec_3.phpt]
Test function pcntl_fork() by calling it with its expected arguments [tests/pcntl_fork_basic.phpt]
Test function pcntl_fork() by testing the process isolation in the forking hierarchy father -> son -> grandson where father can not knows his grandson [tests/pcntl_fork_variation.phpt]
Test pcntl_get_last_error() [tests/pcntl_get_last_error.phpt]
pcntl_signal() [tests/pcntl_signal.phpt]
pcnt_signal_dispatch() [tests/pcntl_signal_dispatch.phpt]
pcntl_wait() [tests/pcntl_wait.phpt]
Closures as a signal handler [tests/signal_closure_handler.phpt]
=====================================================================

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oleg@oleg-Lenovo-G580:/php/php-5.4.6/ext/pcntl$ version

键入以下命令时，似乎PHP确实已经安装了，尽管PHP解释器在我安装此扩展之前根本没有识别该函数：

oleg@oleg-Lenovo-G580:/php/php-5.4.6/ext/pcntl$ php -m | grep pcntl
PHP Warning:  Module 'pcntl' already loaded in Unknown on line 0
pcntl

如何配置此功能以正常工作？

答案 1

sudo gedit

sudo gedit /etc/php5/cli/php.ini

或 \ 和

sudo gedit /etc/php5/apache2/php.ini找到：

disable_functions = pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl

注释掉：

;disable_functions = pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl

答案 2

我也有这个问题。Ubuntu 附带了一些示例 PHP 配置文件：是 Apache Web 服务器 PHP 配置（）的模板，它禁用了pcntl_fork和其他功能。是从命令行（）（）运行的 PHP 模板，包括运行测试时，它不会禁用任何功能。但不知何故，我是Apache配置的副本，它禁用了这些功能。/usr/share/php5php.ini-production/etc/php5/apache2/php.iniphp.ini-production.cli/etc/php5/cli/php.ini/etc/php5/cli/php.ini

我不知道这是怎么发生的。我在 Ubuntu 12.04 中安装了我的 LAMP 堆栈。我的文件日期为2013年10月，建议Ubuntu 13.10设置它;也许该版本复制了错误的文件。Ubuntu 升级会更新示例文件，但会单独保留这些文件。/etc/php5/cli/php.ini/usr/share/php5/etc/

为了修复它，我使用了

$ sudo cp -pi /usr/share/php5/php.ini-production.cli /etc/php5/cli/php.ini

以复制默认命令行设置文件。显然，如果您对命令行PHP5设置进行了更改，这将覆盖它们;使用您的UNIX技能来比较和合并它们。