PHP finds odd and even numbers and multiple methods

Example 1, find the sum of odd numbers between 0--100

 php
$sum=0;
for($i=0;$i<=100;$i++) {
if($i%2==1){
$sum+=$i;
} }
echo $ sum;
?>




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< ?php
$sum=0;
for($i=0;$i<=100;$i+=2) {
$sum+=$i;
 }
echo $sum;
?>




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for($i=0;$i<=$num;$i++){

if($i%2= =0){

$sum1 += $i;

 }
echo $num."Odd sum within: $sum2; Even sum: $sum1";
 }
 getSums();
 echo "";
 getSums(120); //Actual parameters? //This is to find the sum of odd and even numbers within 120
?>

< /html>


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