Question

How to calculate power of a number in PHP

Answer 1

$exponent = 4;
$n = 2;
$i = 1;
$power = 1;
 
while ($i <= $exponent)
{
    $power = $power * $n;
    $i++;
}

echo $n . " ^ " . $exponent . " = " . $power;
    
   
/*
run: 

2 ^ 4 = 16 
 
*/

 

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Answer 2

$exponent = 4;
$n = 2;
 
$power = pow($n , $exponent);

echo $n . " ^ " . $exponent . " = " . $power;
    
   
/*
run: 

2 ^ 4 = 16 
 
*/

 

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