Useful programs

Php Armstrong number

• Take the number.
• Store it in a variable.
• Take a variable for sum.
• Divide the number with 10 until quotient is 0.
• Cube the remainder.
• Compare sum variable and number variable.

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Armstrong number in PHP

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Below program checks whether 407 is Armstrong or not.

Example:

1. <?php  
2. $num=407;  
3. $total=0;  
4. $x=$num;  
5. while($x!=0)  
6. {  
7. $rem=$x%10;  
8. $total=$total+$rem*$rem*$rem;  
9. $x=$x/10;  
10. }  
11. if($num==$total)  
12. {  
13. echo “Yes it is an Armstrong number”;  
14. }  
15. else  
16. {  
17. echo “No it is not an armstrong number”;  
18. }  
19. ?>  

Output:

null

Look at the above snapshot, the output displays that 407 is an Armstrong number.