Nested conditional execution in PHP - Mini Project: Build & Apply

Nested conditional execution

📖 Scenario: You are creating a simple PHP program to decide what message to show based on the weather and time of day.

🎯 Goal: Build a PHP script that uses nested if statements to check the weather and time, then prints the correct message.

📋 What You'll Learn

Create variables for $weather and $time with exact values

Add a variable $isWeekend to indicate if it is weekend

Use nested if statements to check $weather and $time

Print the correct message based on conditions

💡 Why This Matters

🌍 Real World

Nested conditions help programs make decisions based on multiple factors, like weather and time, similar to how apps show different messages or options.

💼 Career

Understanding nested conditional execution is essential for programming logic in web development, automation scripts, and many software applications.

1

DATA SETUP: Create weather and time variables

Create a variable called $weather and set it to the string "sunny". Also create a variable called $time and set it to the string "morning".

PHP

<?php

// Create variables $weather and $time with exact values
// Your code here

Need a hint?

Use = to assign the string values to the variables.

2

CONFIGURATION: Add weekend indicator variable

Add a variable called $isWeekend and set it to true.

PHP

<?php

$weather = "sunny";
$time = "morning";

// Add variable $isWeekend and set it to true
// Your code here

Need a hint?

Use true without quotes for boolean true.

3

CORE LOGIC: Use nested if statements to check conditions

Write nested if statements to check if $weather is "sunny". Inside that, check if $time is "morning". If both are true, set a variable $message to "Good morning! Enjoy the sunny day!". Otherwise, set $message to "Have a nice day!". If $weather is not "sunny", set $message to "Stay indoors and relax.".

PHP

<?php

$weather = "sunny";
$time = "morning";
$isWeekend = true;

// Use nested if statements to set $message based on $weather and $time
// Your code here

Need a hint?

Use == to compare strings inside if conditions.

4

OUTPUT: Print the message

Write a print statement to display the value of the variable $message.

PHP

<?php

$weather = "sunny";
$time = "morning";
$isWeekend = true;

if ($weather == "sunny") {
    if ($time == "morning") {
        $message = "Good morning! Enjoy the sunny day!";
    } else {
        $message = "Have a nice day!";
    }
} else {
    $message = "Stay indoors and relax.";
}

// Print the message
// Your code here

Need a hint?

Use print($message); to show the message.