PHP5安装、配置内容
二、安装PHP 5.2.6（FastCGI模式）
1、编译安装PHP 5.2.6所需的支持库：
tar zxvf libiconv-1.12.tar.gz
cd libiconv-1.12/
./configure --prefix=/usr/local
make
make install
cd ../
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 ../
cp /usr/local/lib/libmcrypt.* /usr/lib
ln -s /usr/local/lib/libmhash.so.2 /usr/lib/libmhash.so.2
tar zxvf mcrypt-2.6.7.tar.gz
cd mcrypt-2.6.7/
./configure
make
make install
cd ../
2、编译安装MySQL 5.1.26-rc
/usr/sbin/groupadd mysql
/usr/sbin/useradd -g mysql mysql
tar zxvf mysql-5.1.26-rc.tar.gz
cd mysql-5.1.26-rc/
./configure --prefix=/usr/local/webserver/mysql/ --enable-assembler --with-extra-charsets=complex --enable-thread-safe-client --with-big-tables --with-readline --with-ssl --with-embedded-server --enable-local-infile
make && make install
chmod +w /usr/local/webserver/mysql
chown -R mysql:mysql /usr/local/webserver/mysql
cp support-files/my-medium.cnf /usr/local/webserver/mysql/my.cnf
cd ../
附：以下为附加步骤，如果你想在这台服务器上运行MySQL数据库，则执行以下两步。如果你只是希望让PHP支持MySQL扩展库，能够连接其他服务器上的MySQL数据库，那么，以下两步无需执行。
①、以mysql用户帐号的身份建立数据表：
/usr/local/webserver/mysql/bin/mysql_install_db --defaults-file=/usr/local/webserver/mysql/my.cnf --basedir=/usr/local/webserver/mysql --datadir=/usr/local/webserver/mysql/data --user=mysql --pid-file=/usr/local/webserver/mysql/mysql.pid --skip-locking --port=3306 --socket=/tmp/mysql.sock
②、启动MySQL（最后的&表示在后台运行）
/bin/sh /usr/local/webserver/mysql/bin/mysqld_safe --defaults-file=/usr/local/webserver/mysql/my.cnf &
3、编译安装PHP（FastCGI模式）
tar zxvf php-5.2.6.tar.gz
gzip -cd php-5.2.6-fpm-0.5.8.diff.gz | patch -d php-5.2.6 -p1
cd php-5.2.6/
./configure --prefix=/usr/local/webserver/php --with-config-file-path=/usr/local/webserver/php/etc --with-mysql=/usr/local/webserver/mysql --with-mysqli=/usr/local/webserver/mysql/bin/mysql_config --with-iconv-dir=/usr/local --with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib --with-libxml-dir=/usr --enable-xml --disable-rpath --enable-discard-path --enable-safe-mode --enable-bcmath --enable-shmop --enable-sysvsem --enable-inline-optimization --with-curl --with-curlwrappers --enable-mbregex --enable-fastcgi --enable-fpm --enable-force-cgi-redirect --enable-mbstring --with-mcrypt --with-gd --enable-gd-native-ttf --with-openssl
sed -i 's#-lz -lm -lxml2 -lz -lm -lxml2 -lz -lm -lcrypt#& -liconv#' Makefile
make
make install
cp php.ini-dist /usr/local/webserver/php/etc/php.ini
cd ../
4、编译安装PHP5扩展模块
tar zxvf memcache-2.2.3.tgz
cd memcache-2.2.3/
/usr/local/webserver/php/bin/phpize
./configure --with-php-config=/usr/local/webserver/php/bin/php-config
make
make install
cd ../
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 ../
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"
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：
sed -i 's#extension_dir = "./"#extension_dir = "/usr/local/webserver/php/lib/php/extensions/no-debug-non-zts-20060613/"\nextension = "memcache.so"\n#' /usr/local/webserver/php/etc/php.ini
sed -i 's#output_buffering = Off#output_buffering = On#' /usr/local/webserver/php/etc/php.ini
6、配置eAccelerator加速PHP：
mkdir -p /usr/local/webserver/eaccelerator_cache
vi /usr/local/webserver/php/etc/php.ini
按shift+g键跳到配置文件的最末尾，加上以下配置信息：
引用
[eaccelerator]
zend_extension="/usr/local/webserver/php/lib/php/extensions/no-debug-non-zts-20060613/eaccelerator.so"
eaccelerator.shm_size="128"
eaccelerator.cache_dir="/usr/local/webserver/eaccelerator_cache"
eaccelerator.enable="1"
eaccelerator.optimizer="1"
eaccelerator.check_mtime="1"
eaccelerator.debug="0"
eaccelerator.filter=""
eaccelerator.shm_max="0"
eaccelerator.shm_ttl="300"
eaccelerator.shm_prune_period="120"
eaccelerator.shm_only="0"
eaccelerator.compress="1"
eaccelerator.compress_level="9"
修改配置文件：
vi /etc/sysctl.conf
输入以下内容：
引用
kernel.shmmax = 134217728
然后执行以下命令使配置生效：
/sbin/sysctl -p
7、创建www用户和组，以及供blog.s135.com和www.s135.com两个虚拟主机使用的目录：
/usr/sbin/groupadd www -g 48
/usr/sbin/useradd -u 48 -g www www
mkdir -p /data0/htdocs/blog
chmod +w /data0/htdocs/blog
chown -R www:www /data0/htdocs/blog
mkdir -p /data0/htdocs/www
chmod +w /data0/htdocs/www
chown -R www:www /data0/htdocs/www
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：
rm -f /usr/local/webserver/php/etc/php-fpm.conf
vi /usr/local/webserver/php/etc/php-fpm.conf
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）：
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<?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">0</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">200</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">250</value>
</value>
</value>
Time?limit?on?waiting?execution?of?single?request ?
Should?be?used?when?'max_execution_time'?ini?option?does?not?terminate?execution?for?some?reason ?
<value?name="request_execution_timeout">31s</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 ?
<value?name="chroot"></value>
Chdir?to?this?directory?at?the?start ?
<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">51200</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：
ulimit -SHn 51200
/usr/local/webserver/php/sbin/php-fpm start
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。
