Write PHP program to perform the following operations on Indexed Array: a) Check the array element is positive or negative b) Calculate the average of array elements c) Calculate the sum of array elements

Assignment:3 Practice Set Q.3 Solution

Q.3. Write PHP program to perform the following operations on Indexed Array: a) Check the array element is positive or negative b) Calculate the average of array elements c) Calculate the sum of array elements

Code

    
      

      <?php

  //input string

  echo"Enter elements of array (Saperate each element by a ,)";

  $inpstr= readline();

  

  //Convert string into array

  

  $arr= explode(',',$inpstr);

  

  //Finding positive and negative elements

  

  echo" Positive Elements on the left side and Negative elements on the right side";

  foreach($arr as $element)

  {

    if($element > 0)

    {

      echo"\n$element";

    }

    else

    {

      echo"\n\t\t$element";

    }

  }

  

  //Finding Average 

  

  $sum=array_sum($arr);

  

  if($sum > 0)

  {

    $cnt= count($arr);

    $avg= $sum / $cnt;

    echo"\nAverage= $avg";

  }

  else{

    echo"\nAverage cannot be counted";

  }

  

  //Finding sum of elements

  

  

  $sum=array_sum($arr);

  

  echo"\nSum of elements in the array are: $sum";

?>