PHP for loop Exercises : Iterating on two integers to get Fizz, Buzz and FizzBuzz

Last update on May 30 2022 11:40:23 (UTC/GMT +8 hours)

PHP for loop: Exercise-11 with Solution

Write a PHP program which iterates the integers from 1 to 100. For multiples of three print "Fizz" instead of the number and for the multiples of five print "Buzz". For numbers which are multiples of both three and five print "FizzBuzz".

Sample Solution:

PHP Code:

<?php
for ($i = 1; $i <= 100; $i++)
{
  if ( $i%3 == 0 && $i%5 == 0 )
   {
     echo $i . " FizzBuzz"."\n" ;
   }
  else if ( $i%3 == 0 ) 
   {
     echo $i. " Fizz"."\n";
   }
     else if ( $i%5 == 0 ) 
   {
     echo $i. " Buzz"."\n";
   }
     else
   {
     echo $i."\n";
   }
 }
?>

Sample Output:

1                                                           
2                                                           
3 Fizz                                                      
4                                                           
5 Buzz                                                      
6 Fizz                                                      
7                                                           
8                                                           
9 Fizz                                                      
10 Buzz                                                     
......                                                
90 FizzBuzz                                                 
91                                                          
92                                                          
93 Fizz                                                     
94                                                          
95 Buzz                                                     
96 Fizz                                                     
97                                                          
98
99 Fizz                                                     
100 Buzz

Flowchart:

PHP Code Editor:

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Previous: Write a PHP script that creates the specific table (use for loops).
Next: Write a PHP program to generate and display the first n lines of a Floyd triangle. (use n=5 and n=11 rows).

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.

PHP: Tips of the Day

How to Sort Multi-dimensional Array by Value?

Try a usort, If you are still on PHP 5.2 or earlier, you'll have to define a sorting function first:

Example:

function sortByOrder($a, $b) {
    return $a['order'] - $b['order'];
}

usort($myArray, 'sortByOrder');

Starting in PHP 5.3, you can use an anonymous function:

usort($myArray, function($a, $b) {
    return $a['order'] - $b['order'];
});

And finally with PHP 7 you can use the spaceship operator:

usort($myArray, function($a, $b) {
    return $a['order'] <=> $b['order'];
});

To extend this to multi-dimensional sorting, reference the second/third sorting elements if the first is zero - best explained below. You can also use this for sorting on sub-elements.

usort($myArray, function($a, $b) {
    $retval = $a['order'] <=> $b['order'];
    if ($retval == 0) {
        $retval = $a['suborder'] <=> $b['suborder'];
        if ($retval == 0) {
            $retval = $a['details']['subsuborder'] <=> $b['details']['subsuborder'];
        }
    }
    return $retval;
});

If you need to retain key associations, use uasort() - see comparison of array sorting functions in the manual

Ref : https://bit.ly/3i77vCC