Architecture articles | take you easily play LAMP site architecture platform (a)

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 1. What is the LAMP architecture?

LAMP architecture is one of the mature enterprise web application model that can work in a collaborative system and related software, provides dynamic Web site services and application development environment.

LAMP is an acronym L: Linux操作系统, A: Apache网站服务器, M: MySQL数据库服务器, P: PHP、Python、Perl编程语言;

2.LAMP architecture platform of the constituent components

• Linux操作系统: LAMP architecture is the basis for the operating system support Web site, has good stability, compatibility;

• Apache网站服务器: LAMP is a front-end architecture, powerful, good stability Web server program, providing user-oriented site visits, send web pages, documents, pictures and other content;

• MySQL数据库服务器: LAMP back-end architecture, open source relational database system for storing data in a MySQL database, can be queried via SQL statements;

• PHP、Python、Perl编程语言: Dynamic web programming language used to explain the dynamic page document that provides development and runtime environment Web applications. PHP is an open-source general-purpose scripting language is a widely used, and can be embedded into HTML for Web application development.

Application advantages 3.LAMP architecture platform

• 成本低: Open source software, freely available and free to use, not too strict limitations on technology and licenses, greatly reducing implementation costs.

• 可定制: Has a large number of additional components and can be extended with modules, customized to meet the needs of enterprise applications, self-development, adding new features.

• 易开发: Dynamic website LAMP platform-based page code is simple binding of HTML markup language very well, and can easily read and modify the page code.

• 方便易用: PHP programming language interpretative language, development of various Web programs do not need to compile, easy to use portable, the entire website project program, can be copied to the site directory, you can access.

• 安全稳定: Thanks to the open source strengths;

4. Building the PHP runtime environment

PHP：Hypertext Preprocessor，超文本预处理器的字母缩写, Is a versatile open source scripting language is a widely used, and can be embedded into HTML for Web application development, and has better page execution speed, supports most popular databases and a variety of operating systems .

PHP 4.1 installation package

Ready to work

To avoid conflicting program and so on, first to rpminstall manner phpand related dependencies.

If already exists, can be based on the actual situation 卸载 php php-cli php-ldap php-common php-mysql, etc. In addition, the need to install zlib-develand libxml2-develpackages.

1 [root@localhost lamp]# rpm -e php php-cli php-ldap php-common php-mysql --nodeps
2 [root@localhost lamp]# rpm -ivh /mnt/Packages/zlib-devel-1.2.3-29.el6.x86_64.rpm 
3 [root@localhost lamp]# rpm -ivh /mnt/Packages/libxml2-devel-2.7.6-14.el6.x86_64.rpm 

4.2 Installing an expansion tool library

In practice, companies, based in part on PHPthe development Webwill require an additional extension tool applications.

For example: 数据加密工具：libmcrypt、mhash、mcryptand so, this article involved in the installation package will be packaged together 公众号后台, we can by the end of the text 获取were acquired way 或through 站点：http://sourceforge.netdownloading, installing PHPbefore the packages, you must first install the extensions of these tools.

Installation libmcrypt

1 [root@localhost lamp]# tar zxf libmcrypt-2.5.8.tar.gz -C /usr/src/
2 [root@localhost lamp]# cd /usr/src/libmcrypt-2.5.8/
3 [root@localhost libmcrypt-2.5.8]# ./configure
4 [root@localhost libmcrypt-2.5.8]# make && make install
5 [root@localhost libmcrypt-2.5.8]# ln -s /usr/local/lib/libmcrypt.* /usr/lib/

Installation mhash

1 [root@localhost lamp]# tar zxf mhash-0.9.9.9.tar.gz -C /usr/src/
2 [root@localhost lamp]# cd /usr/src/mhash-0.9.9.9/
3 [root@localhost mhash-0.9.9.9]# ./configure
4 [root@localhost mhash-0.9.9.9]# make && make install
5 [root@localhost mhash-0.9.9.9]# ln -s /usr/local/lib/libmhash* /usr/lib/

Install mcrypt

1 [root@localhost lamp]# tar zxf mcrypt-2.6.8.tar.gz -C /usr/src/
2 [root@localhost lamp]# cd /usr/src/mcrypt-2.6.8/
3 [root@localhost mcrypt-2.6.8]# ./configure
4 [root@localhost mcrypt-2.6.8]# ln -s /usr/local/bin/libmcrypt-config /usr/bin/libmcrypt-config
5 [root@localhost mcrypt-2.6.8]# export LD_LIBRARY_PATH=/usr/local/lib: LD_LIBRARY_PATH     # 解决 configure 配置报错的现象
6 [root@localhost mcrypt-2.6.8]# ./configure
7 [root@localhost mcrypt-2.6.8]# make && make install

4.3 Compile and install PHP

Unpack

The download PHPsource package and released to extract the /usr/srcdirectory, and the switching to the directory.

1 [root@localhost lamp]# tar zxf php-5.3.28.tar.gz -C /usr/src/
2 [root@localhost lamp]# cd /usr/src/php-5.3.28/

Configuration

Custom PHPwhen configuration options are required httpdand mysqldthe installation path, easy to add support related settings so that LAMPthe components work together. Also specify 安装路径, 启用多字节支持, 加密扩展支持and so on.

1 [root@localhost php-5.3.28]# ./configure --prefix=/usr/local/php5 --with-mcrypt --with-apxs2=/usr/local/httpd/bin/apxs --with-mysql=/usr/local/mysql --with-config-file-path=/usr/local/php5 --enable-mbstring

The parameters included in the meaning of the options:

• --prefix: Specifies the PHPinstall program to which directory;

• --with-mcrypt：加载数据加密等扩展工具；

• --with-apxs2: Set apache http serverapxs file location module provides support process;

• --with-mysql: setting MySQL 数据库the installation location of the service program;

• --with-config-file-path: Set PHPthe configuration file php.iniwill be stored position;

• --enable-mbstring：启用多字节字符串功能，支持中文等代码；

If, during configuration, the following error appears, it has led to compile unsuccessful phenomenon;

1 configure: error: Cannot find libmysqlclient under /usr.
2 Note that the MySQL client library is not bundled anymore!

By looking libmysqlclient, libmysqlclient.so.16.0.0 found in / usr / lib64 / mysql / directory to make soft links, PHP by default to the / usr / lib / search, did not find it, find the problem just fine solved.

Solution

Run the following commands to;

1 cp-Rp /usr/lib64/mysql/libmysqlclient.so.15.0.0 /usr/lib/libmysqlclient.so

 

 

 

Compile and install

No error occurred during compilation longer period, then the PHPinstallation program is basically complete.

1 [root@localhost php-5.3.28]# make && make install

 

 

The components of the environment setting LAMP

mainly includes

• PHP 的配置文件 php.ini: PHP determining operating parameters;

• Apache 的配置文件 httpd.conf: Libphp5.so load module, easy to support PHP pages;

php.ini configuration adjustments

php.ini and set up the basic settings, PHP packages installed, the server does not automatically create php.ini file, but in the source directory has two respectively . php.ini 开头的样例配置文件，分别用于开发环境和生产环境

. 1 [the root @ localhost PHP-5.3.28] # LL php.ini- * 
2 -rw-R & lt -. R-- games. 1 501 69606 dated 12 is the php.ini-Development, 2013. 11    # developed sample file 
. 3 -rw -r -. r-- 1 501 games 69627 12 2013 the php.ini-production's Yue 11    # production sample files

Select a sample file and copy it to PHPthe directory profile /usr/local/php5under and renamed php.ini.

1 [root@localhost php-5.3.28]# cp /usr/src/php-5.3.28/php.ini-development /usr/local/php5/php.ini

Modify php.inithe configuration content file, you can control the PHPexecution characteristics of the web page.

Whether to allow users to upload files, set a size limit upload files, set the default character set used to load additional expansion modules such as;

. 1 [the root @ localhost PHP-5.3.28] # VI /usr/local/php5/php.ini 
2 784 DEFAULT_CHARSET = " UFT-. 8 "                # Set the default character set: UTF-. 8 
. 3 882 = the On the file_uploads                        # allows PHP file upload page 
. 4 891 the upload_max_filesize = 2M                 # allowed to upload file size limit 
. 5 894 max_file_uploads = 20 is                    # files for each HTTP request to upload the maximum allowed 
. 6 740. post_max_size = 8M                       # data amount of each form submitted by limiting post 
. 7 226 the short_open_tag the On =                      # allowing identification labeling of PHP phrases

添加 ZendGuardLoader 优化模块To improve PHPthe performance of programs, optimize page loading speed. This optimization module applies to PHP 5.3 series version, but also from 官方站点：http://www.zend.com 下载.

First, download the ZendGuardLoaderpackage extract to /usr/srca directory, and one of the php-5.3.xreplication module files in the directory to the PHPmodule in folder.

1 [root@localhost lamp]# tar zxf ZendGuardLoader-php-5.3-linux-glibc23-x86_64.tar.gz -C /usr/src/
2 [root@localhost lamp]# cd /usr/src/ZendGuardLoader-php-5.3-linux-glibc23-x86_64/php-5.3.x/
3 [root@localhost php-5.3.x]# cp ZendGuardLoader.so /usr/local/php5/lib/php

Modify php.inithe configuration file, and add load to enable ZendGuardLoader.soconfiguration statements modules.

1 [root@localhost php-5.3.x]# vi /usr/local/php5/php.ini
2 1919 zend_extension=/usr/local/php5/lib/php/ZendGuardLoader.so
3 1920 zend_loader.enable=1

httpd.conf configuration adjustments

The httpd服务器support PHPpage analytic functions, through LoadModuleconfiguration item PHPmodule file for the program, and then add AddTypeconfiguration items and support for .phpweb page file types, you also need to DirectoryIndexadd configuration items to configure lines index.phpand index.htmlto identify common PHPhome page file.

Restart the httpdservice, and update the configuration item;

1 [root@localhost php-5.3.x]# vi /usr/local/httpd/conf/httpd.conf
2 53 LoadModule php5_module        modules/libphp5.so
3 54 AddType application/x-httpd-php .php
4 170 DirectoryIndex index.php index.html
5 [root@localhost php-5.3.x]# /usr/local/httpd/bin/apachectl restart

Meaning of the above-mentioned configuration contains

LoadModule is installed PHPautomatically during added, AddType need to manually add, DirectoryIndex need to be modified on the basis of the original;

• php5_module: Module name;

• modules/libphp5.so: Module file locations;

6. Is LAMP test has been set up successfully

Completed PHPafter installation and configuration-related extension tool, they can be tested to verify the correlation function LAMP架构平台and the root directory of websites /usr/local/httpd/htdocs/created corresponding test PHPpage, accessed through a browser, to determine LAMPwhether to build a successful,

Be verified in two ways:

• PHP 网页解析是否成功；

• 访问 MySQL 数据库系统进行验证；

PHP test page is normal

Write a suffix test1.phpformat of the page file, combined with PHPthe built-in phpinfo( )function to show server PHPenvironment information, file code should be included <?php···?>between the mark and the file in the root of the site /usr/local/httpd/htdocs/.

1 [root@localhost php-5.3.x]# vi /usr/local/httpd/htdocs/test1.php
2 <?php
3 phpinfo( );
4 ?>

Accessed through a browser called: test1.phptest page.

E.g:http://www.jacktiangjwan.com/test1.php

You can see the PHPversion number of the program, configuration commands, run variables;

 

 

Test whether PHP website can be accessed MySQL database

Write a suffix test2.phppage file format 添加数据库的操作命令, and is used to verify MySQL 数据库the connection, query and other operations.

• mysql_connect()函数: To connect MySQL数据库, specify the destination host address, user name, password;

• mysql_close: Disconnect from the database;

. 1 [@ localhost the root-MySQL 5.5.22] # VI /usr/local/httpd/htdocs/test2.php 
2 < ? PHP
 . 3 $ Link = mysql_connect ( ' 127.0.0.1 ' , ' the root ' , ' 666666 ' );     # connect to the MySQL database 
4  IF ($ Link) echo " Congratulations, successfully connect to the MySQL database! " ;      # return information when a successful connection 
5 mysql_close ();                                        # disconnect from the database 
6 >?

Restart Service

1 [root@localhost mysql-5.5.22]# /usr/local/httpd/bin/apachectl restart

Accessed through a browser called: test2.phptest page.

E.g:http://www.jacktiangjwan.com/test2.php

We can see a successful connection MySQL 数据库message when you are wrong user name and password, or mysql_connect()函数not running caused the database connection fails, you will be prompted an error page.

 

 

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