String concatenation operator in PHP - Mini Project: Build & Apply

String Concatenation Operator

📖 Scenario: You are creating a simple PHP script to combine parts of a greeting message. This is common when you want to build sentences from smaller pieces.

🎯 Goal: Build a PHP script that uses the string concatenation operator to join parts of a greeting message and display the full message.

📋 What You'll Learn

Create variables with exact string values

Use the string concatenation operator . to join strings

Print the final concatenated string

💡 Why This Matters

🌍 Real World

Combining strings is useful for building messages, file paths, or any text output dynamically.

💼 Career

Understanding string concatenation is essential for web developers working with PHP to create dynamic web pages.

1

Create greeting parts

Create two string variables called $greeting with the value "Hello" and $name with the value "World".

PHP

<?php

// Create variables $greeting and $name with values "Hello" and "World"

Need a hint?

Use = to assign strings to variables. Strings must be in double quotes.

2

Create a space variable

Create a string variable called $space and set it to a single space character " ".

PHP

<?php
$greeting = "Hello";
$name = "World";

// Create variable $space with a single space string

Need a hint?

Remember a space is just a string with one space character inside quotes.

3

Concatenate strings

Create a variable called $message that concatenates $greeting, $space, and $name using the string concatenation operator ..

PHP

<?php
$greeting = "Hello";
$name = "World";
$space = " ";

// Concatenate $greeting, $space, and $name into $message

Need a hint?

Use the dot . operator between each variable to join them.

4

Print the message

Use echo to print the variable $message.

PHP

<?php
$greeting = "Hello";
$name = "World";
$space = " ";
$message = $greeting . $space . $name;

// Print the $message variable

Need a hint?

Use echo $message; to display the combined string.