What are the highlights of PHP technology?

Powerful functions (Recommended learning: PHP programming from entry to proficiency)

PHP in the process of Web project development It has extremely powerful functions and is relatively simple to implement, supporting almost all popular databases and operating systems.

Widely used

Currently, many famous and non-famous Websites are all developed through PHP language

Low development cost

Compared with other technologies, PHP is one of the few that is free and develops source code technical language. And PHP is not bound by the platform, and PHP-based web servers can be set up in many different operating systems such as UNIX and Linux.

Programming Paradigms

PHP is a flexible and dynamic language that supports multiple programming paradigms. It has continued to evolve over the years, with important milestones including PHP 5.0 (2004) adding a complete object-oriented model, PHP 5.3 (2009) adding anonymous functions and namespaces, and PHP 5.4 (2012) adding traits.

Object-oriented programming

PHP has complete object-oriented programming features, such as classes, abstract classes, interfaces, inheritance, constructors, cloning and exceptions, etc.

Functional programming

PHP supports first-class functions, that is, functions can be assigned to variables, including user-defined functions and built-in functions , and then call it dynamically. Functions can be passed as arguments to other functions (i.e. higher-order functions), and they can also be returned as function return values.

PHP supports recursive function calls, that is, the function calls itself, but in actual PHP code, we prefer to use iteration instead of recursion.

Metaprogramming

PHP supports multiple ways of metaprogramming through reflection API and magic method mechanisms. Developers can change the behavior of a class through magic methods, such as __get(), __set(), __clone(), __toString(), __invoke(), etc. Ruby developers often say that PHP does not have a method_missing method. In fact, the same function can be accomplished through __call() and __callStatic().

Command Line Interface

The main purpose of PHP is to develop web applications, but its command line scripting interface (CLI) is also very useful. PHP command line programming can help you complete automated tasks such as testing, deployment and application management.

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