Question

How to find NCR factorial of a number in PHP

Answer 1

function factorial($n) {
    return ($n==1 || $n==0) ? 1 : $n * factorial($n - 1);
}
    
$n = 7;
$r = 3;
  
$ncr = factorial($n) / (factorial($r) * factorial($n - $r));
     
echo $ncr;
  

 
 
 
/*
run:
 
35
 
*/

 

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