Write a PHP program to perform the following operations on an associative array: a) Display the elements of an array along with the keys. b) Display the size of an array c) Delete an element from an array from the given index. d) Reverse the order of each element’s key-value pair 17e) Traverse the elements in an array in random order.

Assignment:3 Set A Q.2 Solution

Q.2. Write a PHP program to perform the following operations on an associative array: a) Display the elements of an array along with the keys. b) Display the size of an array c) Delete an element from an array from the given index. d) Reverse the order of each element’s key-value pair e) Traverse the elements in an array in random order.

    
      

      <?php

  //INPUT KEYS OF ARRAY

  

  echo"Enter keys of array and saperate each key by a ','";

  $inpkeys= readline();

  $arrkeys= explode(',',$inpkeys);

   //INPUT VALUES OF ARRAY 

  echo"Enter values of array and saperate each key by a ','";

  $inpvalues= readline();

  $arrvalues= explode(',',$inpvalues);

  

  //COMBINE KEYS AND VALUES

 $associative_array=array_combine($arrkeys,$arrvalues);

  echo"Final Combined array=";

  print_r($associative_array);

  

  //SIZE OF ARRAY

  $size=count($associative_array);

  echo"Size of array = $size";

  

  //DELETE ELEMENT FROM GIVEN INDEX

  echo"\nEnter the index to be deleted";

  $delind=readline();

  

  if(array_key_exists($delind,$associative_array))

  {

    unset($associative_array[$delind]);

    echo"Deleted the index";

    print_r($associative_array);

  }

  else

  {

    echo"Key not found";

  }

  

  

$reversed_array = array();

// Reversing the order of key-value pairs

echo "\nReversed array:\n";

foreach ($associative_array as $key => $value) {

    $reversed_array[$value] = $key;

}

foreach ($reversed_array as $key => $value) {

    echo "$key : $value\n";

}

shuffle($associative_array);

echo"\nShuffled array:\n";

print_r($associative_array);

?>