Built-in Functions
Explore commonly used PHP built-in functions.
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Built-in Functions
Welcome to the next lesson! PHP provides a rich set of built-in functions to simplify common tasks like working with strings, arrays, dates, and more. In this lesson, you’ll learn how to use some of the most commonly used built-in functions. Let’s get started!

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What Are Built-in Functions?
Built-in functions are predefined functions provided by PHP to perform specific operations. They save you time by handling complex tasks with just a function call.
Key Point: Built-in functions cover a wide range of areas, including string manipulation, mathematical calculations, and file handling.