Recap - Iterating Over Data

Part of the Fundamentals section of Coddy's PHP journey — lesson 53 of 71.

Challenge

Easy

Read three lines of input:

A comma-separated list of integers (e.g., 12,5,8,20,3,15,7)
A minimum threshold value
A maximum threshold value

Process the array to find the sum of all numbers that fall within the range (inclusive of both minimum and maximum). First check if a number is exactly double the maximum threshold and, if so, stop immediately with break. Otherwise, use continue to skip numbers outside the range.

Print two lines:

The sum of valid numbers within the range
The count of numbers that were added to the sum

Example 1:

If the inputs are 5,12,8,20,15,3,10, 5, and 15, the output should be:

50
5

(5 + 12 + 8 + 15 + 10 = 50, five numbers are within range 5-15)

Example 2:

If the inputs are 2,8,12,20,6,14, 5, and 10, the output should be:

8
1

(Processing stops at 20 because it's double the max of 10; only 8 was added before that point, so the sum is 8 and the count is 1)

Example 3:

If the inputs are 1,2,3,4,5, 10, and 20, the output should be:

0
0

(No numbers fall within the range 10-20)

Try it yourself

<?php
// Read input
$numbers = explode(',', trim(fgets(STDIN)));
$min = intval(trim(fgets(STDIN)));
$max = intval(trim(fgets(STDIN)));

// Initialize variables
$sum = 0;
$count = 0;

// TODO: Write your code here
// Loop through the numbers array
// Use 'continue' to skip numbers outside the range (min to max inclusive)
// Use 'break' if you encounter a number exactly double the maximum threshold
// Keep track of the sum and count of valid numbers


// Output the results
echo $sum . "\n";
echo $count;
?>

All lessons in Fundamentals

2Variables and Data Types

Numbers Strings and Quotes Booleans Naming Conventions Recap - Variable Init Empty Variables String Concatenation Getting User Input Cast to Different Types

5Conditional Logic

If Statement If - Else The Ternary Operator Null Coalescing Operator Switch Statement Recap - Making Decisions

8Loops

For Loop While Loop Foreach Loop Looping with Keys and Values Break Statement Continue StatementRecap - Iterating Over Data

11Final Challenges

Challenge - Factorial Calc Challenge - Longest Word Challenge - Vowel Counter