Question

How to print Floyd's triangle in PHP

Answer 1

// Floyd's triangle is a right-angled triangular of natural numbers
  
$rows = 7;
$n = 1;
   
for ($i = 1; $i <= $rows; $i++) {
    for ($j = 1; $j <= $i; $j++, $n++) {
        echo $n . " ";
    }
    echo "\n";
}


  
/*
run:
   
1 
2 3 
4 5 6 
7 8 9 10 
11 12 13 14 15 
16 17 18 19 20 21 
22 23 24 25 26 27 28 
    
*/

 

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