1. Write class declarations and member function definitions for an employee(code, name, designation). Derive emp_account(account_no, joining_date) from employee and emp_sal(basic_pay, earnings, deduction) from emp_account. Write a menu driven program a) To build a master table b) To sort all entries c) To search an entry d) Display salary

Assignment 1: Set A Q.1 Solution

Write class declarations and member function definitions for an employee(code, name, designation). Derive emp_account(account_no, joining_date) from employee and emp_sal(basic_pay, earnings, deduction) from emp_account. Write a menu driven program a) To build a master table b) To sort all entries c) To search an entry d) Display salary

Index.html

          
      <form action="backend.php" method="post">

        <select name="opt">
          <option value="1" >Master table</option>
          <option value="2">Search Entry</option>
          <option value="3">Display Salary</option>
        </select>
      
      <br>  <br>
      
        <input type="text" name="inp" placeholder="Entry">
      
        <br><br>
      
      <input type="submit">
      </form>

    

    

Backend.php

          
      <?php

  class emp
  {
    public $ecode,$ename,$edesig;

    function __construct($eid,$en,$ed)
    {
      $this -> ecode = $eid ;
      $this -> ename = $en ;
      $this -> edesig= $ed ;
    }

  }

  class emp_acc extends emp
  {
    public $ano,$jd;

    function __construct($eid,$en,$ed,$ano,$jd)
    {
      parent :: __construct($eid,$en,$ed);

      $this -> ano= $jd;
      $this -> jd= $ano;

    }
  }

  class emp_sal extends emp_acc
  {

    public $basic_sal,$payments,$duration;

    function __construct($eid,$en,$ed,$ano,$jd,$b,$p,$d)
    {
      parent :: __construct($eid,$en,$ed,$ano,$jd);

      $this -> basic_sal= $b;
      $this -> payments= $p;
      $this -> duration= $d;

    }
  }

  function mtable($arr)
  {
    echo"<table border=2>
    <tr>
      <th>Employee Name</th>
      <th>Employee Id</th>
      <th>Employee Designation</th>
      <th>Joining Date</th>
      <th>Account Number</th>
      <th>Basic salary</th>
      <th>Joining date</th>
      <th>Duration</th>
    </tr>";
    foreach($arr as $value)
    {
      echo"<tr>
        <td>{$value -> ecode} </td>
        <td> {$value -> ename }</td>
        <td>{$value -> edesig} </td>
        <td>{$value -> ano }</td>
        <td>{$value -> jd }</td>
        <td>{$value -> basic_sal} </td>
        <td>{$value -> payments} </td>
        <td>{$value -> duration} </td>
      </tr> 
      ";
    }

    echo"</table>";
  }

  function se($arr,$inp)
  {
    foreach($arr as $value)
    {
      $r=1;
        $acode= $value -> ecode;
        if($acode==$inp)
        {
          echo"Employee found, employee name: {$value -> ename}";
          $r=0;
          break;
        }
    }
    if($r==1)
    {
      echo"Employee not found";
    }
  }

  function ds($arr,$inp)
  {
    foreach($arr as $value)
    {
      $r=1;
        $acode= $value -> ecode;
        if($acode==$inp)
        {
          echo"Employee found, employee salary: {$value -> basic_sal}";
          $r=0;
          break;
        }
    }
    if($r==1)
    {
      echo"Employee not found";
    }
  }

  $e1 = new emp_sal(121,"Alex","Manager",121101,'12-2-2003',150000,130000,'30days');


  $e2 = new emp_sal(122,"Roy","It",121435,'9-5-2004',15000,13000,'28days');

  


  $e3 = new emp_sal(123,"Cally","Sales",121344,'14-9-2005',20000,19000,'25days');

  $arr= array($e1,$e2,$e3);

  $opt=$_POST['opt'];
  $inp=$_POST['inp'];
  switch ($opt)
  {
    case 1: mtable($arr);
    break;

    case 2: se($arr,$inp);
    break;

    case 3 : ds($arr,$inp);
    break;
  }
?>