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Write a menu driven program to perform the following stack and queue related operations:[Hint: use Array_push(), Array_pop(), Array_shift(), Array_unshift() ] a) Insert an element in stack b) Delete an element from stack c) Display the contents of stack d) Insert an element in queue e) Delete an element from queue f) Display the contents of queue

 HTML CODE:


<html>
<body>
<form action="a2.php"method="GET">
     <p>Which operation do you want to perform?</p>
     <input type="radio" name="op" value="1">
          <label for="insert">Insert an element in stack<label><br>
     <input type="radio" name="op" value="2">
          <label for="delete">Delete an element from stack</label><br>  
     <input type="radio" name="op" value="3">
          <label for="display">Display the contents of stack</label><br>  
     <input type="radio" name="op" value="4">
          <label for="insert1">Insert an element in queue<label><br>  
     <input type="radio" name="op" value="5">
          <label for="delete1">Delete an element from queue<label><br>      
     <input type="radio" name="op" value="6">
          <label for="display1">Display the contents of queue<label><br>    
<input type="submit" value="submit">
</form>  
</body>
</html>



PHP CODE:



<?php

$arr=array(10,20,30,40,50);

$ch=$_GET['op'];

switch($ch)
{
    case 1 : ins($arr);
             break;
           
    case 2 : del($arr);
                 break;
               
        case 3 : dis($arr);
                 break;
                 
        case 4 : ins1($arr);
                 break;
                 
        case 5 : del1($arr);
                 break;
                 
        case 6 : dis1($arr);
                 break;
}

function ins($arr)
{
    $p=Array_push($arr,60);
    print_r($arr);
}

function del($arr)
{
    $q=Array_pop($arr);
    print_r($arr);
}

function dis($arr)
{
    print_r($arr);
}

function ins1($arr)
{
    $r=Array_unshift($arr,70);
    print_r($arr);
}

function del1($arr)
{
    $s=Array_shift($arr);
    print_r($arr);
}

function dis1($arr)
{
    print_r($arr);
}

?>
   
   

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