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　　二、安装PHP 5.2.8（FastCGI模式）
　　1、编译安装PHP 5.2.8所需的支持库：

tar zxvf libmcrypt-2.5.8.tar.gz
cd libmcrypt-2.5.8/
./configure
make
make install
/sbin/ldconfig
cd libltdl/
./configure –enable-ltdl-install
make
make install
cd ../../

tar zxvf mhash-0.9.9.tar.gz
cd mhash-0.9.9/
./configure
make
make install
cd ../

ln -s /usr/local/lib/libmcrypt.la /usr/lib/libmcrypt.la
ln -s /usr/local/lib/libmcrypt.so /usr/lib/libmcrypt.so
ln -s /usr/local/lib/libmcrypt.so.4 /usr/lib/libmcrypt.so.4
ln -s /usr/local/lib/libmcrypt.so.4.4.8 /usr/lib/libmcrypt.so.4.4.8
ln -s /usr/local/lib/libmhash.a /usr/lib/libmhash.a
ln -s /usr/local/lib/libmhash.la /usr/lib/libmhash.la
ln -s /usr/local/lib/libmhash.so /usr/lib/libmhash.so
ln -s /usr/local/lib/libmhash.so.2 /usr/lib/libmhash.so.2
ln -s /usr/local/lib/libmhash.so.2.0.1 /usr/lib/libmhash.so.2.0.1

tar zxvf mcrypt-2.6.7.tar.gz
cd mcrypt-2.6.7/
/sbin/ldconfig
./configure
make
make install
cd ../

　　②、启动MySQL（最后的&表示在后台运行）

tar jxvf eaccelerator-0.9.5.3.tar.bz2
cd eaccelerator-0.9.5.3/
/usr/local/webserver/php/bin/phpize
./configure –enable-eaccelerator=shared –with-php-config=/usr/local/webserver/php/bin/php-config
make
make install
cd ../

tar zxvf PDO_MYSQL-1.0.2.tgz
cd PDO_MYSQL-1.0.2/
/usr/local/webserver/php/bin/phpize
./configure –with-php-config=/usr/local/webserver/php/bin/php-config –with-pdo-mysql=/usr/local/webserver/mysql
make
make install
cd ../

　　5、修改php.ini文件
　　手工修改：查找/usr/local/webserver/php/etc/php.ini中的extension_dir = “./”
　　修改为extension_dir = “/usr/local/webserver/php/lib/php/extensions/no-debug-non-zts-20060613/”
　　并在此行后增加以下几行，然后保存：
　　extension = “memcache.so”
　　extension = “pdo_mysql.so”

　　再查找output_buffering = Off
　　修改为output_buffering = On

　　自动修改：若嫌手工修改麻烦，可执行以下shell命令，自动完成对php.ini文件的修改：

　　6、配置eAccelerator加速PHP：

　　按shift+g键跳到配置文件的最末尾，加上以下配置信息：

　　修改配置文件：

　　输入以下内容：

　　然后执行以下命令使配置生效：

　　8、创建php-fpm配置文件（php-fpm是为PHP打的一个FastCGI管理补丁，可以平滑变更php.ini配置而无需重启php-cgi）：
　　在/usr/local/webserver/php/etc/目录中创建php-fpm.conf文件：

　　输入以下内容（如果您安装 Nginx + PHP 用于程序调试，请将以下的<value name=”display_errors”>0</value>改为<value name=”display_errors”>1</value>，以便显示PHP错误信息，否则，Nginx 会报状态为500的空白错误页）：

<?xml version=”1.0″ ?> <configuration>   All relative paths in this config are relative to php’s install prefix   <section name=”global_options”>     Pid file     <value name=”pid_file”>/usr/local/webserver/php/logs/php-fpm.pid</value>     Error log file     <value name=”error_log”>/usr/local/webserver/php/logs/php-fpm.log</value>     Log level     <value name=”log_level”>notice</value>     When this amount of php processes exited with SIGSEGV or SIGBUS …     <value name=”emergency_restart_threshold”>10</value>     … in a less than this interval of time, a graceful restart will be initiated.     Useful to work around accidental curruptions in accelerator’s shared memory.     <value name=”emergency_restart_interval”>1m</value>     Time limit on waiting child’s reaction on signals from master     <value name=”process_control_timeout”>5s</value>     Set to ‘no’ to debug fpm     <value name=”daemonize”>yes</value>   </section>   <workers>     <section name=”pool”>       Name of pool. Used in logs and stats.       <value name=”name”>default</value>       Address to accept fastcgi requests on.       Valid syntax is ‘ip.ad.re.ss:port’ or just ‘port’ or ‘/path/to/unix/socket’       <value name=”listen_address”>127.0.0.1:9000</value>       <value name=”listen_options”>         Set listen(2) backlog         <value name=”backlog”>-1</value>         Set permissions for unix socket, if one used.         In Linux read/write permissions must be set in order to allow connections from web server.         Many BSD-derrived systems allow connections regardless of permissions.         <value name=”owner”></value>         <value name=”group”></value>         <value name=”mode”>0666</value>       </value>       Additional php.ini defines, specific to this pool of workers.       <value name=”php_defines”>         <value name=”sendmail_path”>/usr/sbin/sendmail -t -i</value>         <value name=”display_errors”>1</value>       </value>       Unix user of processes         <value name=”user”>www</value>       Unix group of processes         <value name=”group”>www</value>       Process manager settings       <value name=”pm”>         Sets style of controling worker process count.         Valid values are ‘static’ and ‘apache-like’         <value name=”style”>static</value>         Sets the limit on the number of simultaneous requests that will be served.         Equivalent to Apache MaxClients directive.         Equivalent to PHP_FCGI_CHILDREN environment in original php.fcgi         Used with any pm_style.         <value name=”max_children”>128</value>         Settings group for ‘apache-like’ pm style         <value name=”apache_like”>           Sets the number of server processes created on startup.           Used only when ‘apache-like’ pm_style is selected           <value name=”StartServers”>20</value>           Sets the desired minimum number of idle server processes.           Used only when ‘apache-like’ pm_style is selected           <value name=”MinSpareServers”>5</value>           Sets the desired maximum number of idle server processes.           Used only when ‘apache-like’ pm_style is selected           <value name=”MaxSpareServers”>35</value>         </value>       </value>       The timeout (in seconds) for serving a single request after which the worker process will be terminated       Should be used when ‘max_execution_time’ ini option does not stop script execution for some reason       ’0s’ means ‘off’       <value name=”request_terminate_timeout”>0s</value>       The timeout (in seconds) for serving of single request after which a php backtrace will be dumped to slow.log file       ’0s’ means ‘off’       <value name=”request_slowlog_timeout”>0s</value>       The log file for slow requests       <value name=”slowlog”>logs/slow.log</value>       Set open file desc rlimit       <value name=”rlimit_files”>51200</value>       Set max core size rlimit       <value name=”rlimit_core”>0</value>       Chroot to this directory at the start, absolute path       <value name=”chroot”></value>       Chdir to this directory at the start, absolute path       <value name=”chdir”></value>       Redirect workers’ stdout and stderr into main error log.       If not set, they will be redirected to /dev/null, according to FastCGI specs       <value name=”catch_workers_output”>yes</value>       How much requests each process should execute before respawn.       Useful to work around memory leaks in 3rd party libraries.       For endless request processing please specify 0       Equivalent to PHP_FCGI_MAX_REQUESTS       <value name=”max_requests”>500</value>       Comma separated list of ipv4 addresses of FastCGI clients that allowed to connect.       Equivalent to FCGI_WEB_SERVER_ADDRS environment in original php.fcgi (5.2.2+)       Makes sense only with AF_INET listening socket.       <value name=”allowed_clients”>127.0.0.1</value>       Pass environment variables like LD_LIBRARY_PATH       All $VARIABLEs are taken from current environment       <value name=”environment”>         <value name=”HOSTNAME”>$HOSTNAME</value>         <value name=”PATH”>/usr/local/bin:/usr/bin:/bin</value>         <value name=”TMP”>/tmp</value>         <value name=”TMPDIR”>/tmp</value>         <value name=”TEMP”>/tmp</value>         <value name=”OSTYPE”>$OSTYPE</value>         <value name=”MACHTYPE”>$MACHTYPE</value>         <value name=”MALLOC_CHECK_”>2</value>       </value>     </section>   </workers> </configuration>　　9、启动php-cgi进程，监听127.0.0.1的9000端口，进程数为200（如果服务器内存小于3GB，可以只开启64个进程），用户为www：

　　注：/usr/local/webserver/php/sbin/php-fpm还有其他参数，包括：start|stop|quit|restart|reload|logrotate，修改php.ini后不重启php-cgi，重新加载配置文件使用reload。