PHP阿里云升级PHP到5.5详解

使用新版本PHP，提高代码执行效率

数据库采用RDS服务，本地不需要安装MYSQL

使用缓存服务，需要安装官方的memcached扩展

memcached,yar,memcached,apc,mycrypt

[root@iZ28vpjayxiZ ~]# yum remove php  php-bcmath php-cli php-common  php-devel php-fpm    php-gd php-imap  php-ldap php-mbstring php-mcrypt php-mysql   php-odbc   php-pdo   php-pear  php-pecl-igbinary  php-xml php-xmlrpc

[root@iZ28vpjayxiZ ~]# rpm -Uvh http://mirror.webtatic.com/yum/el6/latest.rpm

[root@iZ28vpjayxiZ ~]# yum install php55w  php55w-bcmath php55w-cli php55w-common  php55w-devel php55w-fpm    php55w-gd php55w-imap  php55w-ldap php55w-mbstring php55w-mcrypt php55w-mysql   php55w-odbc   php55w-pdo   php55w-pear  php55w-pecl-igbinary  php55w-xml php55w-xmlrpc php55w-opcache php55w-intl php55w-pecl-memcache

[root@iZ28vpjayxiZ ~]# service httpd restartStopping httpd:                                            [  OK  ]Starting httpd:                                            [  OK  ]

[root@iZ28vpjayxiZ html]# yum  install gcc+ gcc-c++Loaded plugins: securitySetting up Install ProcessNo package gcc+ available.Package gcc-c++-4.4.7-11.el6.x86_64 already installed and latest versionNothing to do[root@iZ28vpjayxiZ html]# yum install cyrus-sasl-plain cyrus-sasl  cyrus-sasl-devel  cyrus-sasl-lib[root@iZ28vpjayxiZ ~]# wget http://launchpad.net/libmemcached/1.0/1.0.16/+download/libmemcached-1.0.16.tar.gz[root@iZ28vpjayxiZ ~]# tar zxvf libmemcached-1.0.16.tar.gz[root@iZ28vpjayxiZ ~]# cd libmemcached-1.0.16[root@iZ28vpjayxiZ libmemcached-1.0.16]# ./configure --prefix=/usr/local/libmemcached --enable-sasl   * CPP Flags:                  -fvisibility=hidden   * LIB Flags:   * Assertions enabled:        no   * Debug enabled:             no   * Shared:                    yes   * Warnings as failure:       no   * SASL support:              yes   * make -j:                   2   * VCS checkout:              no[root@iZ28vpjayxiZ libmemcached-1.0.16]# make && make install[root@iZ28vpjayxiZ libmemcached-1.0.16]# cd ../[root@iZ28vpjayxiZ ~]# yum install zlib-develLoaded plugins: securitySetting up Install ProcessPackage zlib-devel-1.2.3-29.el6.x86_64 already installed and latest versionNothing to do[root@iZ28vpjayxiZ ~]# wget http://pecl.php.net/get/memcached-2.1.0.tgz[root@iZ28vpjayxiZ ~]# tar zxvf memcached-2.1.0.tgz[root@iZ28vpjayxiZ ~]# cd memcached-2.1.0[root@iZ28vpjayxiZ memcached-2.1.0]# phpize[root@iZ28vpjayxiZ memcached-2.1.0]# ./configure --with-libmemcached-dir=/usr/local/libmemcached --enable-memcached-sasl[root@iZ28vpjayxiZ memcached-2.1.0]# make && make install最后修改php.ini文件（locate找该文件，yum安装的一般在/etc/php.ini 如果系统中有两套PHP环境，需找到使用OCS的PHP环境路径，对应修改之），增加extension=memcached.so              memcached.use_sasl = 1执行php –m |grep memcached 如显结果有 memcache 表示环境已支持memcache

[root@iZ28vpjayxiZ ~]# pecl install channel://pecl.php.net/msgpack-0.5.5#修改php.ini 增加 extension=msgpack.so[root@iZ28vpjayxiZ ~]# pecl install yaryes#修改php.ini 增加 extension=yar.so#由于yar需要json支持，所以需要先加载json.so

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