A user-defined function is a block of code created using the function keyword.You write the function once and call it multiple times throughout your program. Example: function sayHello() { echo…

Library functions are pre-defined, built-in functions provided by PHP that help developers perform common tasks easily. Instead of writing code from scratch, you can use these ready-made functions to handle…

Returning values from a function is one of the most powerful features in PHP. It allows a function to process data internally and send the result back to the code…

Function creation is the process of defining your own custom functions using the function keyword. A function can take parameters, perform operations, and optionally return a value. Basic Syntax function…

Functions are one of the most important building blocks in PHP. They allow you to group blocks of code into reusable, organized, and modular units.A well-structured PHP program relies heavily…

Control statements in PHP define how the program flows, allowing you to make decisions, run code repeatedly, or execute specific blocks based on conditions.They are essential for writing dynamic, logical,…

PHP provides powerful features for handling variables in flexible ways. Two important concepts are dynamic variables (also called variable variables) and variable scope.These features allow you to control how variables…

Variable manipulation refers to the different ways you can create, modify, convert, and manage variables in PHP. Since PHP is a loosely typed language, variables can easily change type, value,…

Operators in PHP are symbols used to perform operations on variables and values. They are essential for performing arithmetic calculations, comparisons, logical operations, and more. Understanding PHP operators is crucial…

In PHP, variables are loosely typed, meaning their type can be changed dynamically. Sometimes, you need to convert a variable from one type to another to perform operations correctly. PHP…