在 Ubuntu Server 14.04 下安装 PHP 5.5.9
PHP（英文名: Hypertext Preprocessor，中文名：“超文本预处理器”）是一种通用开源脚本语言。语法吸收了 C 语言、Java 和 Perl 的特点，利于学习，使用广泛，主要适用于 Web 开发领域。
PHP 独特的语法混合了 C、Java、Perl 及 PHP 自创的语法。它可以比 CGI 或者 Perl 更快速地执行动态网页。PHP 是将程序嵌入到 HTML 文档中执行，用 PHP 做出的动态页面与其他的编程语言相比，执行效率比完全生成 HTML 标记的 CGI 要高很多；PHP 还可以执行编译后代码，编译可达到加密、优化代码运行目的，使代码运行更快。
PHP 原为 Personal Home Page 的缩写，已正式更名为 "PHP: Hypertext Preprocessor"。注意不是 “Hypertext Preprocessor” 的缩写，这种将名称放到定义中的写法被称作递归缩写。PHP 于 1994 年由 Rasmus Lerdorf 创建，刚开始 Rasmus Lerdorf 是为了维护个人网页而制作的一个简单的用 Perl 语言编写的程序。这些工具程序用来显示 Rasmus Lerdorf 的个人履历，以及统计网页流量。后来又用 C 语言重新编写，包括可以访问数据库。他将这些程序和一些表单直译器整合起来，称为 PHP/FI。PHP/FI 可以和数据库连接，产生简单的动态网页程序。
百度网盘
https://pan.baidu.com/s/1i5tKlZB
软件仓库
https://github.com/digitser
https://digitser.sourceforge.io/
https://pan.baidu.com/s/1TV70__Be1ta0ney1-tudFQ
高效智能 所见即所得的 "HTML5 Bootstrap4 网页 IDE" 网站站群 集成开发环境
http://ideweb.digitser.cn/ http://forum.digitser.cn/thread-2153-1-1.html
1、安装 PHP5-fpm 5.5.9root:# apt-get install php5-fpm
正在读取软件包列表... 完成
正在分析软件包的依赖关系树
正在读取状态信息... 完成
下列软件包是自动安装的并且现在不需要了：
linux-headers-3.13.0-37 linux-headers-3.13.0-37-generic
linux-headers-3.13.0-39 linux-headers-3.13.0-39-generic
linux-image-3.13.0-37-generic linux-image-3.13.0-39-generic
linux-image-extra-3.13.0-37-generic linux-image-extra-3.13.0-39-generic
Use 'apt-get autoremove' to remove them.
将会安装下列额外的软件包：
php5-common php5-json
建议安装的软件包：
php5-user-cache php-pear
下列【新】软件包将被安装：
php5-common php5-fpm php5-json
升级了 0 个软件包，新安装了 3 个软件包，要卸载 0 个软件包，有 0 个软件包未被升级。
需要下载 2,667 kB 的软件包。
解压缩后会消耗掉 10.6 MB 的额外空间。
您希望继续执行吗？ [Y/n] y
获取：1 [url]http://cn.archive.ubuntu.com/ubuntu/[/url] trusty/main php5-json amd64 1.3.2-2build1 [34.4 kB]
获取：2 [url]http://cn.archive.ubuntu.com/ubuntu/[/url] trusty-updates/main php5-common amd64 5.5.9+dfsg-1ubuntu4.5 [442 kB]
获取：3 [url]http://cn.archive.ubuntu.com/ubuntu/[/url] trusty-updates/universe php5-fpm amd64 5.5.9+dfsg-1ubuntu4.5 [2,191 kB]
下载 2,667 kB，耗时 3秒 (713 kB/s)
Selecting previously unselected package php5-json.
(正在读取数据库 ... 系统当前共安装有 311042 个文件和目录。)
Preparing to unpack .../php5-json_1.3.2-2build1_amd64.deb ...
Unpacking php5-json (1.3.2-2build1) ...
Selecting previously unselected package php5-common.
Preparing to unpack .../php5-common_5.5.9+dfsg-1ubuntu4.5_amd64.deb ...
Unpacking php5-common (5.5.9+dfsg-1ubuntu4.5) ...
Selecting previously unselected package php5-fpm.
Preparing to unpack .../php5-fpm_5.5.9+dfsg-1ubuntu4.5_amd64.deb ...
Unpacking php5-fpm (5.5.9+dfsg-1ubuntu4.5) ...
Processing triggers for man-db (2.6.7.1-1ubuntu1) ...
Processing triggers for ureadahead (0.100.0-16) ...
正在设置 php5-common (5.5.9+dfsg-1ubuntu4.5) ...
Creating config file /etc/php5/mods-available/pdo.ini with new version
php5_invoke: Enable module pdo for fpm SAPI
Creating config file /etc/php5/mods-available/opcache.ini with new version
php5_invoke: Enable module opcache for fpm SAPI
正在设置 php5-fpm (5.5.9+dfsg-1ubuntu4.5) ...
Creating config file /etc/php5/fpm/php.ini with new version
php5_invoke opcache: already enabled for fpm SAPI
php5_invoke pdo: already enabled for fpm SAPI
php5-fpm start/running, process 10370
正在设置 php5-json (1.3.2-2build1) ...
php5_invoke: Enable module json for fpm SAPI
Processing triggers for ureadahead (0.100.0-16) ...
root:#
root:# apt-cache search php5
libapache2-mod-php5 - server-side, HTML-embedded scripting language (Apache 2 module)
php5 - server-side, HTML-embedded scripting language (metapackage)
php5-cgi - server-side, HTML-embedded scripting language (CGI binary)
php5-cli - command-line interpreter for the php5 scripting language
php5-common - Common files for packages built from the php5 source
php5-curl - CURL module for php5
php5-dbg - Debug symbols for PHP5
php5-dev - Files for PHP5 module development
php5-gd - GD module for php5
php5-gmp - GMP module for php5
php5-json - JSON module for php5
php5-ldap - LDAP module for php5
php5-mysql - MySQL module for php5
php5-odbc - ODBC module for php5
php5-pgsql - PostgreSQL module for php5
php5-pspell - pspell module for php5
php5-readline - Readline module for php5
php5-recode - recode module for php5
php5-snmp - SNMP module for php5
php5-sqlite - SQLite module for php5
php5-tidy - tidy module for php5
php5-xmlrpc - XML-RPC module for php5
php5-xsl - XSL module for php5
cakephp - MVC rapid application development framework for PHP
libapache2-mod-php5filter - server-side, HTML-embedded scripting language (apache 2 filter module)
libexpect-php5 - expect module for PHP 5
libgv-php5 - PHP5 bindings for graphviz
libkohana2-modules-php - lightweight PHP5 MVC framework (extension modules)
libkohana2-php - lightweight PHP5 MVC framework
libkohana3.1-core-php - PHP5 framework core classes
libkohana3.1-php - PHP5 framework metapackage
libkohana3.2-core-php - PHP5 framework core classes
libkohana3.2-php - PHP5 framework metapackage
libow-php5 - Dallas 1-wire support: PHP5 bindings
libphp-jpgraph - Object oriented graph library for php5
libphp-jpgraph-examples - Object oriented graph library for php5 (examples)
libphp5-embed - HTML-embedded scripting language (Embedded SAPI library)
php-auth - Creating an authentication system
php-codesniffer - PHP, CSS and JavaScript coding standard analyzer and checker
php-doc - Documentation for PHP5
php-http-request2 - Provides an easy way to perform HTTP requests
php-imlib - PHP Imlib2 Extension
php-letodms-lucene - Document management system - Fulltext search
php5-adodb - Extension optimising the ADOdb database abstraction library
php5-apcu - APC User Cache for PHP 5
php5-enchant - Enchant module for php5
php5-exactimage - fast image manipulation library (PHP bindings)
php5-fpm - server-side, HTML-embedded scripting language (FPM-CGI binary)
php5-gdcm - Grassroots DICOM PHP5 bindings
php5-gearman - PHP wrapper to libgearman
php5-geoip - GeoIP module for php5
php5-gnupg - wrapper around the gpgme library
php5-imagick - ImageMagick module for php5
php5-imap - IMAP module for php5
php5-interbase - interbase/firebird module for php5
php5-intl - internationalisation module for php5
php5-lasso - Library for Liberty Alliance and SAML protocols - PHP 5 bindings
php5-librdf - PHP5 language bindings for the Redland RDF library
php5-mapscript - php5-cgi module for MapServer
php5-mcrypt - MCrypt module for php5
php5-memcache - memcache extension module for PHP5
php5-memcached - memcached extension module for PHP5, uses libmemcached
php5-midgard2 - Midgard2 Content Repository - PHP5 language bindings and module
php5-ming - Ming module for php5
php5-mongo - MongoDB database driver
php5-msgpack - PHP extension for interfacing with MessagePack
php5-mysqlnd - MySQL module for php5 (Native Driver)
php5-mysqlnd-ms - MySQL replication and load balancing module for PHP
php5-oauth - OAuth 1.0 consumer and provider extension
php5-pinba - Pinba module for PHP 5
php5-ps - ps module for PHP 5
php5-radius - PECL radius module for PHP 5
php5-redis - PHP extension for interfacing with Redis
php5-remctl - PECL module for Kerberos-authenticated command execution
php5-rrd - PHP bindings to rrd tool system
php5-sasl - Cyrus SASL Extension
php5-stomp - Streaming Text Oriented Messaging Protocol (STOMP) client module for PHP 5
php5-svn - PHP Bindings for the Subversion Revision control system
php5-sybase - Sybase / MS SQL Server module for php5
php5-tokyo-tyrant - PHP interface to Tokyo Cabinet's network interface, Tokyo Tyrant
php5-vtkgdcm - Grassroots DICOM VTK PHP bindings
php5-xcache - Fast, stable PHP opcode cacher
php5-xdebug - Xdebug Module for PHP 5
php5-xhprof - Hierarchical Profiler for PHP5
phpunit - Unit testing suite for PHP5
root:#
root:#apt-get install php5 php5-cgi php5-curl php5-dev php5-gd php5-mysql php5-pspell php5-recode php5-snmp php5-sqlite php5-tidy php5-xmlrpc php5-xsl php5-imagick php5-imap php5-intl php5-mcrypt php5-memcache php5-memcached php5-ming php5-ps php-pear php-apc
4、重载、重启 php5-fpm 5.5.9、nginx 1.4.6root@:# service php5-fpm reload
root:# service php5-fpm restart
stop: Unknown instance:
php5-fpm start/running, process 3811
root:# service nginx reload
* Reloading nginx configuration nginx [ OK ]
root:# service nginx restart
* Restarting nginx nginx [ OK ]
root:#
vi /usr/share/nginx/html/info.php (或把 info.php 放到支持 php 的网站根目录下)
在 FireFox 或 IE 浏览器中键入 http://localhost/info.php 或 http://127.0.0.1/info.php (或 http://服务器 IP 地址/info.php 或 http://域名地址/info.php)；若出现以下图片内容，说明安装成功：
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