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PHP finds odd and even numbers and multiple methods

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Release： 2016-07-25 09:13:20
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Example 1, find the sum of odd numbers between 0--100

  2. php
  3. $sum=0;
  4. for($i=0;$i<=100;$i++) {
  5. if($i%2==1){
  6. $sum+=$i;
  7. } }
  8. echo $ sum;
  9. ?>
  14. Copy code
Example 2, find the sum of even numbers between 0--100

Find even sum--bbs.it-home.org
  2. < ?php
  3. $sum=0;
  4. for($i=0;$i<=100;$i+=2) {
  5. $sum+=$i;
  6. }
  7. echo $sum;
  8. ?>
  13. Copy code
Method 2: ? php
function getSums($num = 100){$sum1 = 0;$sum2 = 0;
for($i=0;$i<=$num;$i++){

if($i%2= =0){

$sum1 += $i;
}else{
$sum2 += $i;
    }
  1. }
  2. echo $num."Odd sum within: $sum2; Even sum: $sum1";
  3. }
  4. getSums();
  5. echo "

    ";

  6. getSums(120); //Actual parameters? //This is to find the sum of odd and even numbers within 120
  7. ?>
  9. < /html>
  12. Copy code
Related labels：
php求奇数偶数和多种方法
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