centos 下php引入 pcntl扩展

1、利用php -v命令查看当前的PHP CLI的版本

[root@iZ2ze9lk5j1zbi3qi14shwZ lib]# php -v PHP 7.0.14 (cli) (built: Jan 1 2018 22:36:50) ( NTS ) Copyright (c) 1997-2016 The PHP Group Zend Engine v3.0.0, Copyright (c) 1998-2016 Zend Technologies

2、根据版本下载PHP源代码

PHP历史版本下载页面：http://php.net/releases/ 我下载的是 php-7.0.27，大的版本一致即可

3、解压源码压缩包

例如下载的压缩包名称是php-7.0.27.tar.gz

tar -zxvf php-7.0.27.tar.gz

4、进入源码中的ext/pcntl目录

~# cd php-7.0.27/ext/pcntl/

5、运行 phpize 命令

~# phpize Configuring for: PHP Api Version: 20151012 Zend Module Api No: 20151012 Zend Extension Api No: 320151012

6、运行 configure命令

~# ./configure checking for grep that handles long lines and -e... /bin/grep checking for egrep... /bin/grep -E ...

7、运行 make 命令

[root@iZ2ze9lk5j1zbi3qi14shwZ pcntl]# make /bin/sh /var/www/html/php-7.0.27/ext/pcntl/libtool --mode=install cp ./pcntl.la /var/www/html/php-7.0.27/ext/pcntl/modules cp ./.libs/pcntl.so /var/www/html/php-7.0.27/ext/pcntl/modules/pcntl.so cp ./.libs/pcntl.lai /var/www/html/php-7.0.27/ext/pcntl/modules/pcntl.la PATH="$PATH:/sbin" ldconfig -n /var/www/html/php-7.0.27/ext/pcntl/modules ---------------------------------------------------------------------- Libraries have been installed in: /var/www/html/php-7.0.27/ext/pcntl/modules

8、运 行make install 命令

~# make install Installing shared extensions: /usr/local/lib/php/extensions/no-debug-non-zts-20151012/

9、配置ini文件

通过运行 php –ini查找php.ini文件位置，然后在文件中添加extension=pcntl.so

php --ini Configuration File (php.ini) Path: /usr/local/lib Loaded Configuration File: (none) Scan for additional .ini files in: (none) Additional .ini files parsed: (none)

发现没有这个配置文件，把生效的php.ini文件复制一份过去

cp /etc/php.ini /usr/local/lib/php.ini

再查询时就有东西了

php --ini Configuration File (php.ini) Path: /usr/local/lib Loaded Configuration File: /usr/local/lib/php.ini Scan for additional .ini files in: (none) Additional .ini files parsed: (none)

重启php，提示没有这个扩展模块

/etc/init.d/php-fpm restart Stopping php-fpm: [ OK ] Starting php-fpm: [05-Feb-2018 10:47:00] NOTICE: PHP message: PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib64/php/modules/pcntl.so' - /usr/lib64/php/modules/pcntl.so: cannot open shared object file: No such file or directory in Unknown on line 0

把生成的扩展文件复制到提示的扩展路径中

cp /usr/local/lib/php/extensions/no-debug-non-zts-20151012/pcntl.so /usr/lib64/php/modules/pcntl.socp /usr/local/lib/php/extensions/no-debug-non-zts-20151012/ /usr/lib64/php

再次重启

/etc/init.d/php-fpm restart

如果以上步骤都成功了，但还是不行，可能就php.ini里写错了名称，删除了再试下，也有可能是中文字符下的，删除了再写试下