Write a menu-driven program in PHP to perform the following operations on associative arrays: i) Sort the array by values (changing the keys) in ascending, descending order. ii) Also, sort the array by values without changing the keys. iii) Find the intersection of two arrays. iv) Find the union of two arrays.

Assignment:3 Set B Q.3 Solution

Q.3. Write a menu-driven program in PHP to perform the following operations on associative arrays: i) Sort the array by values (changing the keys) in ascending, descending order. ii) Also, sort the array by values without changing the keys. iii) Find the intersection of two arrays. iv) Find the union of two arrays.

    
      <?php

//ASSOCIATIVE ARRAY 1

  //Input keys

  echo"Enter keys of the associative array 1 and saperate each key with a ','";

  $inpstr1= readline();

  

  $keys= explode(',',$inpstr1);

  

  //Input values

  echo"Enter values of the associative array 2 and saperate each key with a ','";

  $inpstr2= readline();

  

  $values= explode(',',$inpstr2);

  

  $associative_array1=array_combine($keys,$values);

  

  //ASSOCIATIVE ARRAY 2

    //Input keys

  echo"Enter keys of the associative array and saperate each key with a ','";

  $inpstr1= readline();

  

  $keys= explode(',',$inpstr1);

  

  //Input values

  echo"Enter values of the associative array and saperate each key with a ','";

  $inpstr2= readline();

  

  $values= explode(',',$inpstr2);

  

  $associative_array2=array_combine($keys,$values);

  

  print_r($associative_array1);

  print_r($associative_array2);

  while(1)

  {

    echo"Enter your choice\n";

    echo"1.Sort array in ascending order\n";

    echo"2.Sort array in descending order\n";

    echo"3.Sort array without changing keys\n";

    echo"4.Array intersect\n";

    echo"5.Array union\n";

    echo"6.Exit the program\n";

    

    $option=readline();

    

    switch($option)

    {

      case 1: echo"Array 1:\n";

              asort($associative_array1);

              print_r($associative_array1);

              echo"Array 2:\n";

               asort($associative_array2);

              print_r($associative_array2);

              break;

              

      case 2: echo"Array 1:\n";

              arsort($associative_array1);

              print_r($associative_array1);

              echo"Array 2:\n";

               arsort($associative_array2);

              print_r($associative_array2);

              break;

              

      case 3: echo"Array 1:\n";

              sort($associative_array1);

              print_r($associative_array1);

              echo"Array 2:\n";

               sort($associative_array2);

              print_r($associative_array2);

              break;

              

      case 4: echo"Array Intersect:\n";

              $arrint=array_intersect($associative_array2,$associative_array1);

              print_r($arrint);

              break;

              

      case 5: echo"Array Union:\n";

              $arrunion=array_merge($associative_array2,$associative_array1);

              print_r($arrunion);

              break;

              

      case 6: echo"Exiting...";

              exit;

              

    }

  }

?>