[Solved] How to print power series in php

Question

You can do this:

function exponentArr($num){
    $arr = array();
    for($i=0;$i <= $num;$i++){
        $arr[$i] = pow(2, $i);
    }
    return $arr;
}

This will give you an array $arr with the required output.

Accepted Answer

You can do this:

function exponentArr($num){
    $arr = array();
    for($i=0;$i <= $num;$i++){
        $arr[$i] = pow(2, $i);
    }
    return $arr;
}

This will give you an array $arr with the required output.