出于安全原因，pcntl无法在Ubuntu上运行
出于安全原因，pcntl无法在Ubuntu上运行
提问于 2013-04-28 20:28:06
我已经使用this文章在我的PHP5.4.6上安装了pcntl，它运行在Ubuntu32位12.10上。
它一点也不顺利，因为在编译之后，当运行make test时，我得到了以下错误。每次我尝试派生一个子进程时，都会收到一个警告，上面写着：
警告:出于安全原因，已在第8行的/var/www/mydev/dev/mailServiceTest.php中禁用了pcntl_fork()
我在网上到处寻找解决方案，但不幸的是，我在其他任何地方都没有找到任何关于这个问题的提及。
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当输入以下命令时，似乎PHP确实已经安装，尽管PHP解释器在我安装此扩展之前根本无法识别该功能：
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如何配置此功能才能正常工作？
回答 2
Stack Overflow用户
回答已采纳
发布于 2013-04-28 20:36:03
sudo gedit
sudo gedit /etc/php5/cli/php.ini或者\和
sudo gedit /etc/php5/apache2/php.ini查找：
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将其注释掉：
;disable_functions = pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntlStack Overflow用户
发布于 2014-04-16 03:15:13
我也有这个问题。Ubuntu在/usr/share/php5中附带了一些示例PHP配置文件：php.ini-production是Apache web服务器PHP配置(/etc/php5/apache2/php.ini)的模板，它禁用了pcntl_fork和其他功能。php.ini-production.cli是用于从命令行(/etc/php5/cli/php.ini)运行的模板，它不会禁用任何功能。但不知何故，我的/etc/php5/cli/php.ini是Apache配置的副本，它禁用了这些功能。
我不知道这是怎么发生的。我用Ubuntu 12.04安装了我的LAMP堆栈。我的/etc/php5/cli/php.ini文件的日期是2013年10月，这表明Ubuntu13.10设置了它；也许那个版本复制了错误的文件。Ubuntu升级会更新/usr/share/php5中的示例文件，但不会影响/etc/中的文件。
为了修复它，我使用了
$ sudo cp -pi /usr/share/php5/php.ini-production.cli /etc/php5/cli/php.ini若要复制默认命令行设置文件，请执行以下操作。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。
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原文链接：
https://stackoverflow.com/questions/16262854
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