由于某些程序不支持php5.2以上的版本，需要安装低版本的PHP和Zend。公司的系统为阿里云的CentOS 6.5 64位版，不能使用yum安装，只能编译安装。我装的是php5.2.17，同时装上了ZendOptimizer3.3.9。安装过程中需要用到的软件在文章末尾，大家自行下载即可。下面就来看下具体步骤：
第一步：安装系统环境需要的软件
yum install -y gcc gcc-c++ autoconf libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel libxml2 libxml2-devel zlib zlib-devel glibc glibc-devel glib2 glib2-devel bzip2 bzip2-devel ncurses ncurses-devel curl curl-devel e2fsprogs e2fsprogs-devel krb5-libs krb5-devel krb5-server libidn libidn-devel openssl openssl-devel openldap openldap-devel nss_ldap openldap-clients openldap-servers
第二步：编译安装PHP-5.2.17所需要的库
tar zxvf libiconv-1.13.1.tar.gz cd libiconv-1.13.1 ./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 jxvf mhash-0.9.9.9.tar.bz2 cd mhash-0.9.9.9 ./configure make && make install echo "/usr/local/lib" >>/etc/ld.so.conf /sbin/ldconfig cd tar zxvf mcrypt-2.6.8.tar.gz cd mcrypt-2.6.8 /sbin/ldconfig ./configure make && make install
注：这里用到的软件都已经下载放到了root里面，下同。
第三步：编译安装PHP-5.2.17（FastCGI）
mkdir -p /usr/rocal/php-5.2.17 tar zxvf php-5.2.17.tar.gz gzip -cd php-5.2.17-fpm-0.5.14.diff.gz | patch -d php-5.2.17 -p1 cd php-5.2.17 patch -p1 < ../php-5.2.17-max-input-vars.patch sed -i "s/\!png_check_sig (sig, 8)/png_sig_cmp (sig, 0, 8)/" ext/gd/libgd/gd_png.c cd php-5.2.17 ln -s /usr/lib64/libjpeg.so /usr/lib/libjpeg.so ln -s /usr/lib64/libpng.so /usr/lib/libpng.so cp -frp /usr/lib64/libldap* /usr/lib/ ./configure --prefix=/usr/local/php-5.2.17 --with-config-file-path=/usr/local/php-5.2.17/etc --with-mysql=/var/lib/mysql --with-mysqli=/usr/lib64/mysql/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 --with-mhash --enable-pcntl --enable-sockets --with-ldap --with-ldap-sasl --with-xmlrpc --enable-zip --enable-soap make ZEND_EXTRA_LIBS='-liconv' make install cp php.ini-dist /usr/local/php-5.2.17/etc/php.ini cd
第四步：编译安装PHP5扩展模块
tar zxvf memcache-2.2.6.tgz cd memcache-2.2.6/ /usr/local/php-5.2.17/bin/phpize ./configure --with-php-config=/usr/local/php-5.2.17/bin/php-config make && make install cd tar jxvf eaccelerator-0.9.6.1.tar.bz2 cd eaccelerator-0.9.6.1/ /usr/local/php-5.2.17/bin/phpize ./configure --enable-eaccelerator=shared --with-php-config=/usr/local/php-5.2.17/bin/php-config --without-eaccelerator-use-inode make && make install cd tar zxvf PDO_MYSQL-1.0.2.tgz cd PDO_MYSQL-1.0.2 /usr/local/php-5.2.17/bin/phpize ./configure --with-php-config=/usr/local/php-5.2.17/bin/php-config --with-pdo-mysql=/var/lib/mysql make && make install cd tar zxvf ImageMagick-6.7.0-8.tar.gz cd ImageMagick-6.7.0-8 ./configure make && make install cd tar zxvf imagick-3.0.1.tgz cd imagick-3.0.1 /usr/local/php-5.2.17/bin/phpize ./configure --with-php-config=/usr/local/php-5.2.17/bin/php-config make && make install cd
第五步：修改php.ini文件
sed -i "s/output_buffering = Off/output_buffering = On/" /usr/local/php-5.2.17/etc/php.ini sed -i "s/extension_dir =/; extension_dir =/" /usr/local/php-5.2.17/etc/php.ini sed -i "s/; cgi.fix_pathinfo=0/cgi.fix_pathinfo=0/" /usr/local/php-5.2.17/etc/php.ini sed -i 's%;open_basedir =%open_basedir ="/tmp/:/data/www/"%' /usr/local/php-5.2.17/etc/php.ini sed -i "s/disable_functions =/disable_functions = popen,pentl_exec,passthru,exec,system,scandir,chgrp,chown,shell_exec,proc_open,proc_get_status,ini_alter,ini_alter,ini_restore,dl,pfsockopen,openlog,syslog,readlink,symlink,popepassthru,stream_socket_server,show_source,escapeshellcmd,escapeshellarg,curl_exec,curl_multi_exec,parse_ini_file,assert/" /usr/local/php-5.2.17/etc/php.ini sed -i "s/expose_php = On/expose_php = Off/" /usr/local/php-5.2.17/etc/php.ini sed -i "s/display_errors = On/display_errors = Off/" /usr/local/php-5.2.17/etc/php.ini sed -i "s/log_errors = Off/log_errors = On/" /usr/local/php-5.2.17/etc/php.ini
第六步：创建并配置php-fpm.conf文件
vim /usr/local/php-5.2.17/php-fpm.conf
配置如下：
<?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/php-5.2.17/logs/php-fpm.pid</value>
Error log file
<value name="error_log">/usr/local/php-5.2.17/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">8</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">65535</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">1024</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
<value name="environment">
<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>
创建www用户及启动php-fpm并加入启动脚本
/usr/sbin/groupadd www /usr/sbin/useradd -g www www mkdir -p /var/www chown -R www:www /var/www/html chmod +w /var/www/html ulimit -SHn 65535 /usr/local/php-5.2.17/sbin/php-fpm start echo "ulimit -SHn 65535" >> /etc/rc.local echo "/usr/local/php-5.2.17/sbin/php-fpm start" >> /etc/rc.local
注：这里的/var/www/html是我网站的目录，你们可以根据自己的情况修改。
第七步：安装ZendOptimizer 3.3.9
解压ZendOptimizer 3.3.9，并复制ZendOptimizer.so到/usr/local/Zend/lib/
tar -zxvf ZendOptimizer-3.3.9-linux-glibc23-x86_64.tar.gz cd ZendOptimizer-3.3.9-linux-glibc23-x86_64 cd data/5_2_x_comp mkdir -p /usr/local/Zend/lib cp ZendOptimizer.so /usr/local/Zend/lib/ cd data/5_2_x_comp/ mkdir -p /usr/local/Zend/lib cp ZendOptimizer.so /usr/local/Zend/lib/
注：/usr/local/Zend/lib/这个目录可以自定义。
在/usr/local/php-5.2.17/etc/php.ini文件尾部添加
[Zend] zend_optimizer.optimization_level=1023 zend_optimizer.encoder_loader=1 zend_extension=/usr/local/Zend/lib/ZendOptimizer.so
第八步：安装完成
重新启动PHP-5.2.17和Nginx，并查看安装结果
/usr/local/php-5.2.17/sbin/php-fpm restart service nginx restart /usr/local/php-5.2.17/bin/php -v
结果如下：
PHP 5.2.17p1 (cli) (built: Sep 7 2016 15:11:29) Copyright (c) 1997-2010 The PHP Group Zend Engine v2.2.0, Copyright (c) 1998-2010 Zend Technologies with Zend Optimizer v3.3.9, Copyright (c) 1998-2009, by Zend Technologies
编译php-5.2.17所用到的文件下载地址：http://pan.baidu.com/s/1hrLA4gW
