1 概述
PHP-FPM(FastCGI Process Manager：FastCGI进程管理器)是一个PHPFastCGI管理器，对于PHP 5.3.3之前的php来说，是一个补丁包 ，旨在将FastCGI进程管理整合进PHP包中。如果你使用的是PHP5.3.3之前的PHP的话，就必须将它patch到你的PHP源代码中，在编译安装PHP后才可以使用。
使得php运行于fpm模式运行，使得php形成一个独立模块，而不仅仅是httpd下的一个模块，php可以监听自己的端口。php和http可以安装与两台机器上，但是一般情况下是将php和http安装在同一主机下，如果要分开安装，由于http服务器将php的文档都发给php-fpm这台机器处理，所以，此时加速的软件包xcache需要安装在php-fpm这台机器上。安装完成后，需要在对应http服务器上做相应的配置
注意，php-fpm（独立运行）和php（模块方式运行）是二选一，只能安装一个，
.CentOS 6，在PHP-5.3.2之前：默认不支持fpm机制；需要自行打补丁并编译安装，httpd-2.2：默认不支持fcgi协议，需要自行编译此模块，解决方案：编译安装httpd-2.4, php-5.3.3+
.CentOS 7：httpd-2.4：rpm包默认编译支持了fcgi模块php-fpm包：专用于将php运行于fpm模式
2 配置fastcgi
.php配置
.php.ini核心配置的详细说明：
http://php.net/manual/zh/ini.core.php
.Php.ini配置选项列表：
http://php.net/manual/zh/ini.list.php
.配置文件：/etc/php.ini，/etc/php.d/*.ini
.Module下，重启Httpd服务
.FastCGI模式下，重启php-fpm服务
.配置文件格式
.配置文件php-fpm.conf.default的格式是格式：
[foo]:Section Header Directive=value
.注释符：#纯粹的注释信息
; 用于注释可启动的指令
在较新的版本中，已经完全使用”;”进行注释
.fcgi服务配置文件：/etc/php-fpm.conf,/etc/php-fpm.d/*.conf
.连接池：
pm = static|dynamic static：固定数量的子进程；pm.max_children dynamic：子进程数量以动态模式管理 pm.max_children pm.start_servers pm.min_spare_servers pm.max_spare_servers pm.max_requests= 500 .确保运行php-fpm进程的用户对session目录有读写权限 mkdir /var/lib/php/session chown apache.apache /var/lib/php/session
配置httpd的配置文件
添加/etc/httpd/conf.d/fcgi.conf配置文件，内容如下：
vim /etc/httpd/conf.d/fcgi.conf .DirectoryIndexindex.php .ProxyRequestsOff .ProxyPassMatch ^/(.*\.php)$fcgi://127.0.0.1:9000/var/www/html/$1 #这里的$1是后项引用 #这里如果php-fcg的php是另一台，需要将127.0.0.1替换成对应机器的ip，如fpm模式的php的ip是172.18.50.73,这里就要将127.0.0.1替换成172.18.50.73.如果fpm安装在本机，就填127.0.0.1即可 #注意：在HTTPD服务器上必须启用proxy_fcgi_module模块，充当PHP客户端。
查看模块
httpd –M |grep fcgi cat /etc/httpd/conf.modules.d/00-proxy.conf
fcgi.conf配置文件中启用以下两行
LoadModule proxy_modulemodules/mod_proxy.so LoadModule proxy_fcgi_modulemodules/mod_proxy_fcgi.so
在fastcgi模式下，可以实现虚拟主机，相关配置如下，注意这个不是编译安装，是通过yum安装的配置如下。
vim /etc/httpd/conf.d/vhosts.conf DirectoryIndex index.php <VirtualHost *:80> ServerName www.b.net DocumentRoot /apps/vhosts/b.net ProxyRequests Off ProxyPassMatch ^/(.*\.php)$ fcgi://127.0.0.1:9000/apps/vhosts/b.net/$1 <Directory"/apps/vhosts/b.net"> OptionsNone AllowOverride +None Requireall granted </Directory> </VirtualHost>
3 CentOS 7安装LAMP(PHP-FPM模式)
3.1 yum安装PHP-FPM
首先要卸载PHP
yum install php-fpm
.查看php-fpm所对应的配置文件
rpm -ql php-fpm /usr/lib/systemd/system/php-fpm.service /etc/logrotate.d/php-fpm /etc/php-fpm.conf /etc/php-fpm.d /etc/php-fpm.d/www.conf /etc/sysconfig/php-fpm /run/php-fpm
.PHP-FPM常见配置
daemonize= no //是否将程序运行在后台 listen = 127.0.0.1:9000 //FPM 监听地址，如果改成listen = 9000就会监听本机所有ip的9000端口 listen.backlog= -1 //等待队列的长度-1表示无限制 listen.allowed_clients= 127.0.0.1 //仅允许哪些主机访问，如果注释这个配置，那么所有的主机都将可以访问，这里127.0.0.1仅允许本机访问。 pm = dynamic //PM是动态运行还是静态运行 //static 固定数量的子进程，pm.max_childen //dynamic子进程数据以动态模式管理 pm.start_servers pm.min_spare_servers pm.max_spare_servers pm.max_requests= 500 php_value[session.save_handler] =files php_value[session.save_path] =/var/lib/php/session //设置session存放位置
.启动PHP-FPM
systemctl start php-fpm
3.2 编译安装PHP-FPM
install_php_fpm(){
echo "now install php-5.6.31.tar.bz2"
echo "install libxml2-devel bzip2-devel libmcrypt-devel,please wait..."
yum -y install openssl-devel libxml2-devel bzip2-devel &>/dev/null || { echo "something wrong when install openssl-devel libxml2-devel bzip2-devel,Please check local yum resource,script exist now";exit; }
yum -y install libmcrypt-devel &>/dev/null || { echo "something wrong when install libmcrypt-devel,Please check epel yum resource,script exist now";exit; }
get_package;
echo "now unzip php-5.6.31.tar.bz2,wait a minite"
tar xf /root/package/package."$time"/php-5.6.31.tar.bz2 -C /usr/local
echo "now configure php"
cd /usr/local/php-5.6.31
./configure --prefix=/app/php --with-mysql=/usr/local/mysql --with-openssl --with-mysqli=/usr/local/mysql/bin/mysql_config --enable-mbstring --with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib --with-libxml-dir=/usr --enable-xml --enable-sockets --enable-fpm --with-mcrypt --with-config-file-path=/etc/php --with-config-file-scan-dir=/etc/php.d --with-bz2 &>/dev/null || { echo "something wrong when configure php,script will exist,please check";exit; }
make &>/dev/null || { echo "something wrong when make php,script will exist,please check";exit; }
make install &>/dev/null || { echo "something wrong when make install php,script will exist,please check";exit; }
[ -e /etc/php ] || mkdir /etc/php/
cp /usr/local/php-5.6.31/php.ini-production /etc/php/php.ini
cp /usr/local/php-5.6.31/sapi/fpm/init.d.php-fpm /etc/init.d/php-fpm
chmod +x /etc/init.d/php-fpm
chkconfig --add php-fpm
cp /app/php/etc/php-fpm.conf.default /app/php/etc/php-fpm.conf
sed -i.bak 's/#LoadModule proxy_module modules\/mod_proxy.so/LoadModule proxy_module modules\/mod_proxy.so/g' /app/httpd24/conf/httpd.conf
sed -i 's/#LoadModule proxy_fcgi_module modules\/mod_proxy_fcgi.so/LoadModule proxy_fcgi_module modules\/mod_proxy_fcgi.so/g' /app/httpd24/conf/httpd.conf
#config httpd
sed -i.bak 's/DirectoryIndex index.html/DirectoryIndex index.php index.html/g' /app/httpd24/conf/httpd.conf
echo "AddType application/x-httpd-php .php" >> /app/httpd24/conf/httpd.conf
echo "AddType application/x-httpd-php-source .phps" >> /app/httpd24/conf/httpd.conf
echo "ProxyRequests Off" >>/app/httpd24/conf/httpd.conf
#If your php_fpm is not install in the local host,you should replace 127.0.0.1 with php_fpm host ip.
echo "ProxyPassMatch ^/(.*\.php)$ fcgi://127.0.0.1:9000/app/httpd24/htdocs/\$1" >>/app/httpd24/conf/httpd.conf
cat >/app/httpd24/htdocs/index.php <<EOF
<h1>
<?php
\$mysqli=new mysqli("$serverip","wpadmin","Pass123456");
if(mysqli_connect_errno()){
echo "it is falilure!";
\$mysqli=null;
exit;
}
echo "nice job,it is connected...";
\$mysqli->close();
phpinfo();
?>
</h1>
EOF
echo "PATH=/app/php/bin:/app/httpd24/bin/:/usr/local/mysql/bin/:$PATH" >>/etc/profile.d/lamp.sh
echo "php_fpm has been complete configure,now resatart php_fpm and httpd24"
service php-fpm restart &>/dev/null && echo "php-fpm has been restart OK,you can test now..." || { echo "Something wrong when startphp-fpm,it will exit,please check";exit; }
/app/httpd24/bin/apachectl restart &>/dev/null && echo "Httpd24 has been restart OK,you can test now..." || { echo "Something wrong when start httpd24,it will exit;please check";exit; }
