不影响原有PHP的情况下安装新版本的php(5.5.20)

1. 安装依赖包。

   

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   yum install gcc httpd-devel libxml2-devel openssl-devel pcre-devel bzip2-devel gmp-devel autoconf curl-devel libxslt-devel libpng-devel postgresql-devel sqlite-devel libmemcached libmemcached-devel gcc-c++ unixODBC-devel   pcre-devel gmp gmp-devel  libxslt-devel libjpeg-turbo-devel freetype-devel -y

2. 下载php源码包

   wget http://cn2.php.net/distributions/php-5.5.20.tar.gz

3. 编译php源码包

  Shell#cd /usr/local/src

  Shell#wget http://cn2.php.net/distributions/php-5.5.20.tar.gz

  Shell#tar -zxvf php-5.5.20.tar.gz

  Shell#cd php-5.5.20

  Shell#./configure --prefix=/usr/local/php5520 --with-config-file-path=/usr/local/php5520/etc  --with-config-file-scan-dir=/usr/local/php5520/etc/php.d  --with-libdir=lib64  --disable-debug --with-pic --disable-rpath --without-pear --with-bz2  --with-freetype-dir=/usr --with-png-dir=/usr --with-xpm-dir=/usr --enable-gd-native-ttf --without-gdbm --with-gettext --with-gmp --with-iconv --with-jpeg-dir=/usr --with-openssl --with-pcre-regex=/usr --with-zlib --with-layout=GNU --enable-exif --enable-ftp  --enable-sockets --enable-sysvsem --enable-sysvshm --enable-sysvmsg --with-kerberos --enable-shmop --enable-calendar --enable-xml --without-MySQL --without-gd --disable-dom --disable-dba --without-unixODBC --disable-pdo --disable-xmlreader --disable-xmlwriter --without-sqlite3 --disable-phar --disable-fileinfo --disable-json --without-pspell --disable-wddx --without-curl --disable-posix --disable-sysvmsg --disable-sysvshm --disable-sysvsem  --enable-fpm --with-mysql=shared,mysqlnd --enable-opcache

  Shell#make && make install

4. 装额外模块（其他模块按照这个模式安装）

  Shell#cd /usr/local/src/php-5.5.20/ext/bcmath

  Shell#/usr/local/php5520/bin/phpize

  Shell#./configure --with-php-config=/usr/local/php5520/bin/php-config

  Shell#make (这一步能够看见生成的bcmath.so的路径)

  Shell#make install

  Shell#vim /usr/local/php5520/etc/php.d/bcmath.ini

  ##########添加

  extension=bcmath.so

  ##########

  Shell#cd /usr/local/src/php-5.5.20/ext/gd

  Shell#/usr/local/php5520/bin/phpize

  Shell#./configure --with-php-config=/usr/local/php5520/bin/php-config --with-freetype-dir=/usr/ --with-jpeg-dir=/usr/

  Shell#make && make install

  Shell#vim /usr/local/php5520/etc/php.d/gd.ini

  ##########添加

  extension=gd.so

  ##########

  Shell#rpm -ivh  ftp://rpmfind.net/linux/epel/6/x86_64/libmcrypt-2.5.8-9.el6.x86_64.rpm 

  Shell#rpm -ivh ftp://rpmfind.net/linux/epel/6/x86_64/libmcrypt-devel-2.5.8-9.el6.x86_64.rpm

  Shell#cd /usr/local/src/php-5.5.20/ext/mcrypt

  Shell#/usr/local/php5520/bin/phpize

  Shell#./configure --with-php-config=/usr/local/php5520/bin/php-config

  Shell#make && make install

  Shell#vim /usr/local/php5520/etc/php.d/mcrypt.ini

  ##########添加

  extension=mcrypt.so

  ##########

  #php的缓存模块，对性能提高比较大

  Shell#cd /usr/local/src/php-5.5.20/ext/opcache

  Shell#/usr/local/php5520/bin/phpize

  Shell#./configure --with-php-config=/usr/local/php5520/bin/php-config

  Shell#make && make install

  Shell#vim /usr/local/php5520/etc/php.d/opcache.ini

  ##########添加

  zend_extension=opcache.so

  opcache.fast_shutdown=1

  opcache.enable_cli=1

  opcache.enable=on

  opcache.memory_consumption=128

  opcache.interned_strings_buffer=8

  opcache.max_accelerated_files=4000

  opcache.revalidate_freq=30

  ##########

5. 配置启动php-fpm

  拷贝php-fpm的启动文件

  Shell#cp -a /usr/local/src/php-5.5.20/sapi/fpm/init.d.php-fpm /etc/rc.d/init.d/php-fpm

  Shell#chmod +x /etc/rc.d/init.d/php-fpm

  Shell#/etc/init.d/php-fpm start

6. 配置文件说明。

  安装为此之后，php和php-fpm 的配置文件都在 /usr/local/php5520/etc 目录下。