安置ireadmail时，自带的php是5.4，筹算升级到5.6。

升级前注意备份本来的/etc/php-fpm.d下的,文件内容如下:

[inet] user = nginx group = nginx listen = 127.0.0.1:9999 listen.owner = nginx listen.group = nginx listen.mode = 0660 ; IP addresses must be separated by comma, and no space between comma and ip. listen.allowed_clients = 127.0.0.1 pm = dynamic pm.max_children = 100 pm.start_servers = 5 pm.min_spare_servers = 5 pm.max_spare_servers = 10 pm.max_requests = 100 pm.status_path = /status ping.path = /ping request_terminate_timeout = 60s request_slowlog_timeout = 10s ; ; Log files ; access.log = /var/log/php-fpm/php-fpm.log slowlog = /var/log/php-fpm/slow.log

还要备份一下/etc/php.ini,以便升级后比较改削.出格是禁用的相关函数部分,最好与5.4时一致,不然可能会邮件系统成果会有影响

接下来开始升级,先删除本来的

yum remove php php-common

centos7下的源

yum install epel-release rpm -ivh http://rpms.famillecollet.com/enterprise/remi-release-7.rpm

安置

yum install -y --enablerepo=remi --enablerepo=remi-php56 php php-opcache php-devel php-mbstring php-mcrypt php-mysqlnd php-phpunit-PHPUnit php-pecl-xdebug php-pecl-xhprof php-fpm

因为是nginx，所以完了之后安置php-fpm

yum install --enablerepo=remi --enablerepo=remi-php56 php-fpm

对了，先别急重启,比较改削一下开篇提到的两个配置文件,之后,重启fpm和nginx

systemctl start php-fpm systemctl restart nginx

iRedmail的php由5.4升级到5.6