PHP has over 1000 built-in functions that can be called directly, from within a script, to perform a specific task. Please check out our PHP reference for a complete overview.

Functions ¶ Table of Contents ¶ User-defined functions Function parameters and arguments Returning values Variable functions Internal (built-in) functions Anonymous functions Arrow Functions First …

Nov 28, 2025 · A function in PHP is a self-contained block of code that performs a specific task. It can accept inputs (parameters), execute a set of statements, and optionally return a value. PHP functions …

In this tutorial, you will learn about PHP functions and how to define user-defined functions.

Oct 29, 2025 · Learn everything about functions in PHP, including how to create user-defined and built-in functions, use parameters and return values, handle scope and errors, and write efficient, modular …

Jul 4, 2025 · PHP Functions are blocks of reusable code that are designed to perform a specific task. Understand its Classifications, Arguments & default values with simple examples:

Like most of the programming languages, a function in PHP is a block of organized, reusable code that is used to perform a single, related action. Functions provide better modularity for your application …

Any valid PHP code may appear inside the body of a function, even other functions and class definitions. Function names follow the same rules as other labels in PHP. A valid function name starts with a …

Feb 16, 2025 · There are two basic types of functions. Built-in functions and user defined ones. The built-in functions are part of the PHP language. Examples are: phpinfo, round or abs. The user …

Sep 10, 2025 · In this article, we learned that a function in PHP is a section of code in a program that is written to perform a specific task. We discussed that they take data as a parameter, run a block of …