在项目开发中，想要实现PHP多个进程之间共享数据的功能，让客户端连接能够共享一个状态，需要开启共享内存函数shmop。如果预期考虑会遇到这方面需求，那么最好在编译PHP的时候添加--with-shmop选项。但是编译的时候没有添加，只能在重新编译配置了。
一、找到php源码包里的扩展目录，进入shmop
# cd /usr/local/src/php-7.1.10/ext/shmop/
二、执行phpize，生成配置
# phpize
[root@bogon shmop]# lsacinclude.m4 ???build ????????config.h.in ?config.nice ???configure ????CREDITS ????libtool ???Makefile.fragments ?missing ???????package2.xml ?README ????????shmop.laaclocal.m4 ?????config.guess ?config.log ??config.status ?configure.in ?include ????ltmain.sh ?Makefile.global ????mkinstalldirs ?package.xml ??run-tests.php ?shmop.loautom4te.cache ?config.h ?????config.m4 ???config.sub ????config.w32 ???install-sh ?Makefile ??Makefile.objects ???modules ???????php_shmop.h ??shmop.c ???????tests
三、执行命令开始编译
# ./configure --with-php-config=/usr/local/php/bin/php-config# make && make install
See any operating system documentation about shared libraries formore information, such as the ld(1) and ld.so(8) manual pages.----------------------------------------------------------------------Build complete.Don‘t forget to run ‘make test‘.Installing shared extensions: ????/usr/local/php/lib/php/extensions/no-debug-non-zts-20160303/
四、修改php.ini开启扩展
复制返回的那行路径：/usr/local/php/lib/php/extensions/no-debug-non-zts-20160303/
# vim /usr/local/php/etc/php.ini
;extension=php_pdo_sqlite.dll;extension=php_pgsql.dllextension=/usr/local/php/lib/php/extensions/no-debug-non-zts-20160303/shmop.so ??//添加此行代码，后面跟上shmop.so
重启php
给PHP开启shmop扩展实现共享内存
原文地址：https://www.cnblogs.com/wt645631686/p/9122064.html