Can you explain what a procedure is in programming?

A procedure in programming is a named block of code that performs a specific task and can be called from different parts of a program. In PHP, procedures are usually implemented as functions that can accept parameters and perform actions, but do not necessarily return a value.

Example of a procedure in PHP:

function sayHello($name) {
    echo "Hello, $name!";
}

sayHello("World"); // Outputs: Hello, World!

Procedures help structure code, make it more readable, and avoid repeating the same fragments.