##########Unix
这是最简单的也是最高效的,拿到php4和apache1.3.12的源代码。tar.gz形式的。
以root身份完成:
#tar -zxvf apache_1.3.12.tar.gz
#cd apache_1.3.12
#./configure --prefix=/apache
#mkdir /apache
#cd ..
#tar -zxvf php-4.0.0.tar.gz
#cd php-4.0.0
#./configure --with-apache=../apache_1.3.12 --enable-track-vars --with-mysql --disable-debug
#make
#make install
#cd ../apache_1.3.12
#./configure --prefix=/apache --activate-module=src/modules/php4/libphp4.a
#make
#make install
#mv /usr/bin/httpd /usr/bin/httpd.old
#ln -s /apache/bin/httpd /usr/bin/httpd
#vi /apache/conf/httpd.conf
去掉 AddType application/x-httpd-php .php前面的#
#/apache/bin/apachestl restart
#####Windows NT /2000
使用IIS4/5的ISAPI接口会效率很高
NT4.0Server需要安装Option pack 1
下载PHP4的二进制winzip版本,解包到某目录,
例如c:\php
以下假设NT/2000安装在c:\winnt
c:\>copy c:\php\php.ini-dist c:\winnt\php.ini
c:\>copy c:\php\PHP4TS.DLL cL\winnt\system32
回到图形环境启动iis管理器
在web站点图标上点击右键,选“属性”“ISAPI过滤器”
增加一个新的过滤器,名字是php
路径是:c:\php\php4isapi.dll
再打开相应web站点的“主目录属性”
按下“配置”按钮,选择“应用程序映射”
增加.php扩展名,可执行文件使用
c:\php\php4isapi.dll
重启动IIS.
#####Windows 98
不推荐使用PWS,因为那要修改注册表。
可以使用Apache 1.3.12 for Win32
下载安装apache1.3.12 W32版本
默认安装目录是
C:\Program Files\Apache Group\Apache
下载安装php4.0.0的win32版本
解压到c:\php
假设windows安装目录是c:\windows
copy c:\php\php.ini-dist c:\windows
copy c:\php\PHP4TS.DLL c:\windows\system
编辑
C:\Program Files\Apache Group\Apache\conf\httpd.conf
增加如下三行
ScriptAlias /php/ "c:/php/"
AddType application/x-httpd-php .php
Action application/x-httpd-php "/php/php.exe"
最好加到有一大堆addtype的地方
从开始菜单启动apache

PHP remains important in modern web development, especially in content management and e-commerce platforms. 1) PHP has a rich ecosystem and strong framework support, such as Laravel and Symfony. 2) Performance optimization can be achieved through OPcache and Nginx. 3) PHP8.0 introduces JIT compiler to improve performance. 4) Cloud-native applications are deployed through Docker and Kubernetes to improve flexibility and scalability.

PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.

PHP and Python each have their own advantages and are suitable for different scenarios. 1.PHP is suitable for web development and provides built-in web servers and rich function libraries. 2. Python is suitable for data science and machine learning, with concise syntax and a powerful standard library. When choosing, it should be decided based on project requirements.

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

The reasons why PHP is the preferred technology stack for many websites include its ease of use, strong community support, and widespread use. 1) Easy to learn and use, suitable for beginners. 2) Have a huge developer community and rich resources. 3) Widely used in WordPress, Drupal and other platforms. 4) Integrate tightly with web servers to simplify development deployment.

PHP remains a powerful and widely used tool in modern programming, especially in the field of web development. 1) PHP is easy to use and seamlessly integrated with databases, and is the first choice for many developers. 2) It supports dynamic content generation and object-oriented programming, suitable for quickly creating and maintaining websites. 3) PHP's performance can be improved by caching and optimizing database queries, and its extensive community and rich ecosystem make it still important in today's technology stack.

In PHP, weak references are implemented through the WeakReference class and will not prevent the garbage collector from reclaiming objects. Weak references are suitable for scenarios such as caching systems and event listeners. It should be noted that it cannot guarantee the survival of objects and that garbage collection may be delayed.

The \_\_invoke method allows objects to be called like functions. 1. Define the \_\_invoke method so that the object can be called. 2. When using the $obj(...) syntax, PHP will execute the \_\_invoke method. 3. Suitable for scenarios such as logging and calculator, improving code flexibility and readability.


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