PHP Common Class Summary Recommended Collection_PHP Tutorial
Chart Library
The following class library allows you to easily create complex charts and pictures. Of course, they require support from the GD library.
pChart - A library for creating statistical charts.
Libchart - This is also a simple statistical gallery.
JpGraph - a object-oriented image creation class.
Open Flash Chart - This is a Flash-based statistical chart.
RSS parsing
Interpreting RSS is not a very tedious task, but fortunately you have the following class library to help you easily read RSS feeds.
MagpieRSS - an open source PHP version RSS parser, said to be powerful but not verified.
SimplePie - This is a very fast and easy-to-use RSS and Atom parsing library.
Thumbnail generation
phpThumb - The function is very powerful, you have to experience it yourself.
Payment
Does your website need to handle payments? Need a program with a payment gateway? The following program can help you.
PHP Payment Library - supports Paypal, Authorize.net and 2Checkout (2CO)
OpenID
PHP-OpenID - supports OpenID A PHP library. OpenID is a solution that helps you log into different websites using the same username and password. If you are not familiar with OpenID, you can take a look here: http://openid.net.cn/
Data is abstract/object relational mappingORM
ADOdb - DatabaseAbstract
Doctrine - Object relational mapper (ORM), requires PHP 5.2.3+ version, a very powerful database abstraction layer (DBAL).
Propel - object relational mapping framework - PHP5
Outlet - is also a tool for object relational mapping.
Note: Object Relational Mapping (ORM for short) is a technology designed to solve the mismatch between object-oriented and relational databases. Simply put, ORM automatically persists objects in a program into a relational database by using metadata that describes the mapping between objects and databases. Essentially converting data from one form to another. This also implies additional execution overhead; however, if the ORM is implemented as a middleware, there are many opportunities for optimizations that do not exist in a hand-written persistence layer. More importantly, the metadata used to control transformations needs to be provided and managed; but again, these costs are less than maintaining a handwritten solution; and even object databases that comply with the ODMG specification still require class-level metadata.
PDF Generator
FPDF - This is a pure PHP library that allows you to generate PDF.
Excel related
Does your site need to generate Excel? No problem, the following two libraries allow you to do this easily.
php-excel - This is a very simple Excel file generation class.
PHP Excel Reader - can parse and read data in XLS files.
E-Mail related
Don’t like PHP’s mail function? Don’t feel strong enough? The following PHP email-related libraries will definitely not let you down.
Swift Mailer - Free super multifunctional PHP email library.
PHPMailer - Super powerful email sending class.
Unit testing
If you are using a test-driven approach to developing your program, the following libraries and frameworks will definitely help you development.
SimpleTest - A PHP unit testing and web page testing framework.
PHPUnit - From the xUnit family, it provides a framework that allows you to easily carry out unit test case development. And its test results can be analyzed very easily.

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

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


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