Armstrong Number in PHP with Example | PHP Programming Tutorial Step by Step
Armstrong Number in PHP with Example | PHP Program with Explanation
Welcome to Php Development Tricks In this PHP tutorial, you'll learn how to check Armstrong Numbers in PHP with a simple example and detailed explanation. This video is perfect for PHP Beginners and those learning PHP Programming.
🔥 What is an Armstrong Number?
An Armstrong Number (also known as Narcissistic Number or Pluperfect Number) is a number that is equal to the sum of its own digits raised to the power of the number of digits.
Armstrong Number Formula:
The Armstrong Number formula is:
abcd...n = aⁿ + bⁿ + cⁿ + dⁿ + ... + nⁿ
Where:
a, b, c, d... are the digits of the number
n is the total number of digits
Each digit is raised to the power of n
✅ Example 1:
Number: 153
Digits: 3
Formula: 1³ + 5³ + 3³ = 1 + 125 + 27 = 153
Result: ✅ It is an Armstrong Number
✅ Example 2:
Number: 9474
Digits: 4
Formula: 9⁴ + 4⁴ + 7⁴ + 4⁴ = 6561 + 256 + 2401 + 256 = 9474
Result: ✅ It is an Armstrong Number
🎯 How This Program Works:
User enters a number in the form.
PHP reads input using $_POST.
The program counts the total number of digits.
Each digit is separated and raised to the power of the number of digits.
The powered digits are summed.
If the sum equals the original number ➡️ It's an Armstrong Number ✅
Otherwise ➡️ It's Not an Armstrong Number ❌
🌟 Why Watch This Video?
✅ Beginner Friendly
✅ Step-by-Step Explanation
✅ Best PHP Tutorial for Beginners
✅ Easy Example Code
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📌 Chapters:
00:00 - Introduction
01:00 - What is Armstrong Number
02:30 - Armstrong Number Formula
04:00 - PHP Code Example
06:00 - How the Program Works
08:00 - Armstrong Number Output
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