


Do you know what PHP is? PHP originated in 1995 and was developed by Rasmus Lerdorf. Up to now, PHP has experienced decades of time washing and has become one of the most popular scripting languages in the world. Let's take a look together
PHP5 is a new object-oriented, completely cross-platform Web development language, so it is very practical both from a developer's perspective and from an economic perspective. The PHP language has a simple structure and is easy to get started, and many functions can be implemented with just one function. Many organizations have successively launched new technologies such as IDE tools and Zend search engines for developing PHP.
Overview
What is PHP
PHP (Hypertext Preprocessor, hypertext preprocessor) is a server , cross-platform, HTML-embedded scripting language. Its unique syntax mixes the characteristics of C language, Java language and Perl language. It is a widely used open source multi-purpose scripting language, especially suitable for Web development.
PHP is a B/S (Browser/Server, browser/server) architecture and a three-tier structure. After the server is started, users can access it using only a browser without using client software, which not only maintains the graphical user interface, but also greatly reduces the amount of application maintenance.
Advantages of PHP language
PHP originated from free software and open source code. Using PHP for web application development has the following advantages.
- High security: PHP is open source software. Everyone can see all PHP source code. The way the program code is compiled with Apache makes its security settings more flexible. PHP has recognized security properties.
- Cross-platform features: PHP supports almost all operating system platforms, and supports multiple web servers such as Apache and IIS.
- Supports a wide range of databases: can operate a variety of mainstream and non-mainstream databases, such as MySQL, Access, SQL Server, Oracle, DB2, etc. Among them, PHP and MySQL are currently the best combination. Their combination can Runs cross-platform.
- Easy to learn: PHP is embedded in HTML language, mainly scripting language, with rich built-in functions, simple syntax and easy writing, making it easy for readers to learn and master.
- Fast execution speed: It takes up less system resources and the code execution speed is fast.
- Free: Among the popular enterprise application LAMP platforms, Linux, Apache, MySQL, and PHP are all free software. This open source and free framework can save website operators a lot of money.
- Template: realize the separation of program logic and user interface.
- Supports object-oriented and process: supports both object-oriented and process development styles, and is backward compatible.
- Built-in Zend acceleration engine, stable and fast performance.
New features of PHP5
- Constructor and destructor.
- Reference of object.
- Clone of the object.
- Private, public and protected modes in objects.
- interface.
- Abstract class.
- __call.
- __set and __get.
- Static members.
Using the AppServ combination package under Windows
The combination package is to package Apache, PHP, MySQL and other server software and tools after installation. Developers only need to unzip the configured package to the local hard disk and use it without further configuration. The combination package enables the rapid establishment of a PHP development environment. For programmers who have just started learning PHP, it is recommended to use this method to build a PHP development environment. Although the combination package is much less flexible, it is easy to install, fast and stable, so it is more suitable for beginners.
There are many popular combination packages on the Internet. Here are three recommended combination packages: EasyPHP, AppServ and XAMPP. For novices, it is recommended to use EasyPHP or AppServ, while XAMPP is more complicated.
Click to download the AppServ combination package:
As shown below:
AppSer integrated installation package construction
1. Double-click the AppServ file to open the startup page as shown below:
2. Click the Next button to open the AppServ installation agreement page as shown below:
3. Click the I Agree button to open the page as shown below. On this page, you can set the installation path of AppServ (the default installation path is generally c:\AppServ). After the AppServ installation is completed, Apache, MySQL, and PHP will be stored in this directory in the form of subdirectories:
4. Click the Next button to open the page as shown below, where you can select the programs and components to be installed (all selected by default):
5. Click the Next button to open the page as shown below. This page mainly sets the Apache port number:
The Apache port number is set to Important, it is directly related to whether the Apache server can start successfully. If port 80 on this machine is occupied by IIS or Thunder, then the server configuration cannot be completed if port 80 is still used here. This problem can be solved by modifying the port number here, or modifying the port number of IIS or Thunder.
#6. Click the Next button to open as shown in the figure below. This page mainly sets the login password and character set of the root user of the MySQL database. Here Set the character set to "GB2312 Simplified Chinese", which means that the character set of the MySQL database will be in Simplified Chinese form:
7. Click the Install button to start the installation, as shown below :
8. The following picture shows the interface after the installation is completed:
After installing AppServ, the entire directory will be installed by default. Under the "c:AppServ" path, this directory contains several subdirectories:
Open the browser and enter "http://localhost/[you set The port number, if it is 80, you don’t need to fill it in]". If you open the following picture, it means that the AppServ installation is successful:
Related learning video sharing: php video tutorial
The above is the detailed content of Teach you how to play with PHP overview and environment construction. For more information, please follow other related articles on the PHP Chinese website!

PHP makes it easy to create interactive web content. 1) Dynamically generate content by embedding HTML and display it in real time based on user input or database data. 2) Process form submission and generate dynamic output to ensure that htmlspecialchars is used to prevent XSS. 3) Use MySQL to create a user registration system, and use password_hash and preprocessing statements to enhance security. Mastering these techniques will improve the efficiency of web development.

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.

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.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

SublimeText3 Linux new version
SublimeText3 Linux latest version

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Notepad++7.3.1
Easy-to-use and free code editor