1、更新
www.bitsCN.com
代码如下:
sudo apt-get update
2、安装nginx
代码如下:
sudo apt-get intsall nginx
Ubuntu安装之后的文件结构大致为:
* 所有的配置文件都在/etc/nginx下,并且每个虚拟主机已经安排在了/etc/nginx/sites-available下 www.bitsCN.com
*程序文件在/usr/sbin/nginx * 日志放在了/var/log/nginx中
*并已经在/etc/init.d/下创建了启动脚本nginx
* 默认的虚拟主机的目录设置在了/var/www/nginx-default
下面可以启动nginx来看看效果(请确保80端口没有其他服务在使用):
代码如下:
sudo /etc/init.d/nginx start
#或者简单的
代码如下:
service nginx start
然后打开浏览器,查看http://localhost/ 看看是否看到了”Welcome to nginx!” 如果看到了,说明安装成功.
当然,基本上,这块儿都不会出问题. 如果运行不成功,可以先
代码如下:
sudo killall apache2
杀掉apache进程
3、安装php
代码如下:
sudo apt-get install php5 php5-cgi php5-mysql php5-curl php5-gd php5-idn php-pear php5-imagick php5-imap php5-mcrypt php5-memcache php5-mhash php5-ming php5-pspell php5-recode php5-snmp php5-tidy php5-xmlrpc php5-sqlite php5-xsl
4、安装spawn-fcgi
为什么要安装spawn-fcgi呢,它用来控制php-cgi进程,以防止进程崩溃或是单进程的效率太低.
网上很多人都说要使用spawn-fcgi必须得安装lighttpd,实际上不必要,可以直接安装spawn-fcgi
运行:
代码如下:
sudo apt-get install spawn-fcgi
5、配置
接下来就是最让人头疼的配置.
配置Nginx和spawn-fcgi配合运行
(1).在/etc/nginx/fastcgi_params 文件最后,加入一行,可以用
sudo vi /etc/nginx/fastcgi_params
加入此行:
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
(2).另外需要在PHP-CGI的配置文件(Ubuntu 上此配置文件位于/etc/php5/cgi/php.ini)中,找到cgi.fix_pathinfo选项,修改为:
cgi.fix_pathinfo=1;
这样php-cgi方能正常使用SCRIPT_FILENAME这个变量.
(3).打开/etc/nginx/sites-available/default文件在
server { listen 80; server_name localhost;
下面添加web根目录的绝对地址,这里是使用的是nginx的默认地址
root /var/www/nginx-default
即root和server_name同级这段即相当于apache的默认目录
如果没有这个的话,容易在执行php 文件的时候,会提示”No input file specified”.
我就曾在此绕了好大个圈子才发现问题.然后修改
#location ~ .php$ {
#fastcgi_pass 127.0.0.1:9000;
#fastcgi_index index.php;
#fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;
#includefastcgi_params;
#}
修改成
location ~ .php$ {
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME /var/www/nginx-default$fastcgi_script_name;
include /etc/nginx/fastcgi_params; #包含fastcgi的参数文件地址
6、开始fast_cgi进程
sudo /usr/bin/spawn-fcgi -a 127.0.0.1 -p 9000 -C 5 -u www-data -g www-data -f /usr/bin/php5-cgi -P /var/run/fastcgi-php.pid
7、设置开机启动fastcgi进程并启动
sudo vi /etc/rc.local
添加下一行
/usr/bin/spawn-fcgi -a 127.0.0.1 -p 9000 -C 5 -u www-data -g www-data -f /usr/bin/php5-cgi -P /var/run/fastcgi-php.pid
如果打开php文件出现:No input file specified请检查php.ini的配置中
cgi.fix_pathinfo=1
doc_root=
还有,每个虚机要根据自己不同的虚机设置不同的目录,要保证这个路径正确.
检查/etc/nginx/sites-available下的配置文件中,server内包含 root 及地址 而非location内的root
启动
fast-cgisudo /usr/bin/spawn-fcgi -a 127.0.0.1 -p 9000 -C 5 -u www-data -g www-data -f /usr/bin/php5-cgi -P /var/run/fastcgi-php.pid
参数含义如下
* -f 指定调用FastCGI的进程的执行程序位置,根据系统上所装的PHP的情况具体设置
* -a 绑定到地址addr
* -p 绑定到端口port
* -s 绑定到unix socket的路径path
* -C 指定产生的FastCGI的进程数,默认为5(仅用于PHP)
* -P指定产生的进程的PID文件路径
* -u和-g FastCGI使用什么身份(-u 用户 -g 用户组)运行,Ubuntu下可以使用www-data,其他的根据情况配置,如nobody、apache等现在可以在web根目录下放个探针或php文件测试一下了
8、安装mysql
sudo apt-get install mysql-server mysql-client
中间会提示输入Root用户密码,依次输入即可.
启动MySQL
sudo /etc/init.d/mysql start
测试mysql服务是否正常:
运行
mysql -uroot -p
输入mysql密码
show databases;
如果看到下面的内容
| Database |
| information_schema |
| mysql |
则mysql已正确安装了.
至此,ubuntu下的nginx+php+mysql就安装完成了.

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PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

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PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


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