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PHP Core Concepts

bookUnderstanding Functions

Note
Definition

A function is a named block of code that performs a specific task and can be executed whenever it is called.

Functions are a fundamental building block in PHP programming. By using functions, you organize your code into logical sections, making it easier to read, maintain, and reuse. This approach helps you avoid repeating code and reduces errors. In PHP, defining and calling functions is straightforward, and you will use them frequently as your programs grow in complexity.

greeting.php

greeting.php

copy

              
123456789

            
<?php
// Function to print a greeting message
function sayHello() {
    echo "Hello, welcome to PHP functions!";
}

// Calling the function
sayHello();
?>
question mark

Which of the following best describes the main purpose of using functions in PHP?

Select the correct answer

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bookUnderstanding Functions

Pyyhkäise näyttääksesi valikon

Note
Definition

A function is a named block of code that performs a specific task and can be executed whenever it is called.

Functions are a fundamental building block in PHP programming. By using functions, you organize your code into logical sections, making it easier to read, maintain, and reuse. This approach helps you avoid repeating code and reduces errors. In PHP, defining and calling functions is straightforward, and you will use them frequently as your programs grow in complexity.

greeting.php

greeting.php

copy

              
123456789

            
<?php
// Function to print a greeting message
function sayHello() {
    echo "Hello, welcome to PHP functions!";
}

// Calling the function
sayHello();
?>
question mark

Which of the following best describes the main purpose of using functions in PHP?

Select the correct answer

Oliko kaikki selvää?

Miten voimme parantaa sitä?

Kiitos palautteestasi!

Osio 1. Luku 1
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