Sunday, 7 February 2016

Object oriented Programming Practice for including all database connectivity insert,update ,delete ,display code all in one in a single page :

22:07


Object oriented Programming Practice for   including all database connectivity  insert,update ,delete ,display code all in one in a single page  :

First  create   table  record:
step 1: create table  record
(id  int primary key  auto_increment,
name  varchar(200),
city varchar(200)
);

(1)write code for  All_model.php file:
<?php
class All_model
{
var $servername="localhost";
var $username="root";
var $pwd="";
var $dbname="prakash";
var $con;

function __construct()
{
$this->con=new mysqli($this->servername,$this->username,$this->pwd,$this->dbname);
if($this->con->connect_error)
{
die ("connection failed:".$con->connect_error);
}

}

function insert($a,$b,$c)
{
$sql="insert into record(id,name,city)values('$a','$b','$c')";
$res=$this->con->query($sql);

if($res)
{
echo "inserted";
}
else
{
echo "not inserted";
}
$this->con->close();
}

function update($a,$b,$c)
{
$sql="update record set name='$b', city='$c' where id='$a'";
$res=$this->con->query($sql);

if($res)
{
echo "updated";
}
else
{
echo "not updated";
}
$this->con->close();
}

function delete($a)
{
$sql="delete from record where id='$a'";
$res=$this->con->query($sql);

if($res)
{
echo "deleted";
}
else
{
echo "not deleted";
}
$this->con->close();
}

function  search($name)
{
$sql = "SELECT * FROM  record where name='$name'";
$result = $this->con->query($sql);

if ($result->num_rows > 0) 
{
    // output data of each row

    while($row = $result->fetch_assoc()) 
{
        echo "id: " . $row["id"]. "  Name: " . $row["name"]. " " . $row["city"]. "<br>";
    }

else 
{
    echo "0 results";
}

$this->con->close(); //connection close
}

function  displayall()
{
$sql = "SELECT * FROM  record";
$result = $this->con->query($sql);

if ($result->num_rows > 0) 
{
    // output data of each row

    while($row = $result->fetch_assoc()) 
{
        echo "id: " . $row["id"]. " - Name: " . $row["name"]. " " . $row["city"]. "<br>";
    }

else 
{
    echo "0 results";
}

$this->con->close(); //connection close
}

}
$obj=new All_model();




?>

=================insert data================
(1)insert.html file code:
<form action="insert.php" method="post">
id<input type="text" name="id">
name<input type="text" name="name">
city<input type="text" name="city">
<input type="submit" name="submit" value="insert">

</form>

(2)insert.php file code:
<?php
include('All_model.php');
$id=$_POST['id'];
$name=$_POST['name'];
$city=$_POST['city'];
$obj->insert($id,$name,$city);

?>

=================update data===========
(1)update.html file code:
<form action="update.php" method="post">
id<input type="text" name="id">
name<input type="text" name="name">
city<input type="text" name="city">
<input type="submit" name="submit" value="update">

</form>

(2)update.php file code :
<?php
include('All_model.php');
$id=$_POST['id'];
$name=$_POST['name'];
$city=$_POST['city'];
$obj->update($id,$name,$city);

?>

==================delete==data =======================
(1)write  delete.html file:
<form action="delete.php" method="post">
id<input type="text" name="id">

<input type="submit" name="submit" value="delete">

</form>

(2)write delete.php file:

<?php
include('All_model.php');
$id=$_POST['id'];

$obj->delete($id);

?>

======================search example=====================
(1)write  search.html file:
<form action="search.php" method="post">
name<input type="text" name="name">

<input type="submit" name="submit" value="search">

</form>

(2)write search.php file code:

<?php
include('All_model.php');
$name=$_POST['name'];

$obj->search($name);

?>































(1)write  code all.php   file:

<?php
                class all
                {
                var $host='localhost';
                var $rt='root';
                var $pw='';
                var $database='manasi';
                var $con;
               
                function  __construct()
                {
                                $this->con=mysql_connect($this->host,$this->rt,$this->pw);
                                if($this->con)
                                {
                                                echo "Connection successful";
                                }
                                else
                                {
                                                echo "Connection failed";
                                }
                                mysql_select_db($this->database,$this->con);
                }
               
                                function myinsert()
                                {
                                                if(isset($_POST['insert']))
                                                {
                                                                $id=$_POST['id'];
                                                                $name=$_POST['name'];
                                                                $sql="insert into myprofile(id,name) values('$id','$name')";
                                                                mysql_query($sql);
                                                                echo "Record inserted successfully";
                                                }
                                }
                                function myupdate()
                                {
                                                if(isset($_POST['update']))
                                                {
                                                                $id=$_POST['id'];
                                                                $name=$_POST['name'];
                                                                $sql="update myprofile set name='$name' where id='$id'";
                                                                mysql_query($sql);
                                                                echo "Record updated successfully";
                                                }
                                               
                                }
                                function mydelete()
                                {
                                                if(isset($_POST['delete']))
                                                {
                                                                $id=$_POST['id'];
                                                                $sql="delete from myprofile where id='$id'";
                                                                mysql_query($sql);
                                                                echo "Record deleted successfully";
                                                }
                                               
                                }
                                function mysearch()
                                {
                                                if(isset($_POST['search']))
                                                {
                                                                $id=$_POST['id'];
                                                                $sql="select * from myprofile where id='$id'";
                                                                $result=mysql_query($sql);
                                                                echo '<table border=2>
                                                                                                <tr>
                                                                                                                <td>Id</td>
                                                                                                                <td>Name</td>
                                                                                                </tr>';
                                                                while($row=mysql_fetch_array($result))
                                                                {
                                                                                echo '<tr>';
                                                                                                echo '<td>';
                                                                                                                echo $row['id'];
                                                                                                echo '</td>';
                                                                                                echo '<td>';
                                                                                                                echo $row['name'];
                                                                                                echo '</td>';
                                                                                echo '</tr>';
                                                                }
                                                                echo '</table>';
                                                }
                                               
                                }
                }
                $allinone=new all();
?>

(2)now how to use all.php file for insert:

(a)write code for  insert.html  file:
<form action="allinsert.php" method=post>
                Id<input type=text name=id>
                Name<input tpye=text name=name>
                <input type=submit name=insert value=Insert>
</form>
(b)now write code for   allinsert.php file:
<?php
                include("all.php");
                $allinone->myinsert();
?>
(3)Now   write   code  how to use all.php   file   for update:
(a)write code for update.html file:
<form action="allupdate.php" method=post>
                Id<input type=text name=id>
                Name<input tpye=text name=name>
                <input type=submit name=update value=Update>
</form>
(b)now   write   code   for   allupdate.php  file:
<?php
                include("all.php");
                $allinone->myupdate();
?>

(4)Now write code for  how to use all.php file to delete record:

(a)write code for delete.html file:
<form action="alldelete.php" method=post>
                Id<input type=text name=id>
                <input type=submit name=delete value=Delete>
</form>
(b)Now   write code for alldelete.php file:
<?php
                include("all.php");
                $allinone->mydelete();
?>

(5)Now  write  code for how to use all.php file for search record:

(a)write  code for search.html file :
<form action="allsearch.php" method=post>
                Id<input type=text name=id>
                <input type=submit name=search value=Search>
</form>
(b)now   write code for   allsearch.php file:
<?php
                include("all.php");
                $allinone->mysearch();
?>

========================================================================
RIGHT AND PERFECT OBJECT ORIENTED TECHNIQUES 
========================================================================
(1)FIRST OF create table about:
SQL>
create table about
(id  int primary key auto_increment,
pagetitle  varchar(200),
description varchar(200),
keyword  varchar(200),
editor1  varchar(200)
);

(2)write code for  database.php file :
<?php
class DBController
{
 private $host = "localhost";
 private $user = "root";
 private $password = "";
 private $database = "test";

 function __construct()
 {
  $conn = $this->connectDB();

  if(!empty($conn))
  {
   $this->selectDB($conn);
  }

 }

 function connectDB()
 {
  $conn = mysql_connect($this->host,$this->user,$this->password);
  return $conn;
 }

 function selectDB($conn)
 {
  mysql_select_db($this->database,$conn);
 }

 function displayQuery($query)//this function is for display record and for search query
 {
  $result = mysql_query($query);
  while($row=mysql_fetch_assoc($result)) {
   $resultset[] = $row;
  }
  if(!empty($resultset))
   return $resultset;
 }

 function runQuery($query) // this function is for insert,update,delete query
 {
$result = mysql_query($query);
return $result;
 }

 function numRows($query)
 {
  $result  = mysql_query($query);
  $rowcount = mysql_num_rows($result);
  return $rowcount;
 }
}
?>

========================================================================
INSERT  QUERY USING OBJECT ORIENTED
========================================================================

(1)write  code  for insert.html file:
<form action="insert.php"  method="post">
Page title<input type=text name=pagetitle>
description <input type=text name=description>
keyword <input type=text name=keyword>
editor1 <input type=text name=editor1>
<input type=submit name=insert  value=insert>
</form>

(2)write code for insert.php file:
<?php

include('database.php');

$pagetitle=$_POST['pagetitle'];
$description=$_POST['description'];
$keyword=$_POST['keyword'];
$editor1=$_POST['editor1'];

$query="insert into about(pagetitle,description,keyword,editor1)values('$pagetitle','$description','$keyword','$editor1')";

$obj=new DBController();

$result=$obj->runQuery($query);

if($result)
{

echo "record inserted";
}
else
{
echo "not inserted";
}
?>

========================================================================
UPDATE  QUERY USING OBJECT ORIENTED
========================================================================

(1)Write code for  update.html file:
<form action="update.php"  method="post">
Page title<input type=text name=pagetitle>
description <input type=text name=description>
keyword <input type=text name=keyword>
editor1 <input type=text name=editor1>
<input type=submit name=update  value=update>
</form>

(2)write code  for update.php file:

<?php

include('database.php');

$pagetitle=$_POST['pagetitle'];
$description=$_POST['description'];
$keyword=$_POST['keyword'];
$editor1=$_POST['editor1'];

$query="update  about set  pagetitle='$pagetitle',description='$description',keyword='$keyword',editor1='$editor1' where pagetitle='$pagetitle'";

$obj=new DBController();

$result=$obj->runQuery($query);

if($result)
{

echo "record updated";
}
else
{
echo "not updated";
}
?>

========================================================================
DELETE  QUERY USING OBJECT ORIENTED
========================================================================

(1)Write code  for  delete.html file:

<form action="delete.php"  method="post">
Page title<input type=text name=pagetitle>
<input type=submit name=delete  value=delete>
</form>

(2)write code for delete.php file:

<?php

include('database.php');

$pagetitle=$_POST['pagetitle'];


$query="delete from about where pagetitle='$pagetitle'";

$obj=new DBController();

$result=$obj->runQuery($query);

if($result)
{

echo "record deleted";
}
else
{
echo "not deleted";
}
?>


========================================================================
DISPLAY ALL RECORD   QUERY USING OBJECT ORIENTED
========================================================================

<?php

include('database.php');

$query="select * from about";
$obj=new DBController();
$data=$obj->displayQuery($query);
  foreach($data as $v) 
  {
 echo $v['pagetitle'];
 echo $v['keyword'];
 echo $v['description'];
 echo $v['editor1'];
 echo '<br>';
  }

?>

========================================================================
SEARCH  RECORD   QUERY USING OBJECT ORIENTED
========================================================================
(1)Write code for search.html file:

<form action="search.php"  method="post">
Page title<input type=text name=pagetitle>
<input type=submit name=search  value=search>
</form>

(2)Write code for search.php file:

<?php
include('database.php');
$pagetitle=$_POST['pagetitle'];
$query="select * from about where pagetitle='$pagetitle'";
$obj=new DBController();
$data=$obj->displayQuery($query);
$num=$obj->numRows($query);
if($num>0)
{


  foreach($data as $v)
  {
 echo $v['pagetitle'];
 echo $v['keyword'];
 echo $v['description'];
 echo $v['editor1'];
 echo '<br>';
  }
}
else
{
echo "no record found";
}

?>


================================================================================================================================================

(1)write code  for    calculater_view.php :
<?php
require_once 'calculator.php';
$obj= new Calculator();
?>
<html>
    <head>
        <title>Loop Example</title>
    </head>
    <body>
        <form action="calculater_view.php" method="post">
            <table>
                <tr>
                    <td>First Number </td>
                    <td>
                        <input type="text" name="first_number" value="">
                    </td>
                </tr>
                <tr>
                    <td>Ending Number </td>
                    <td>
                        <input type="text" name="second_number" value="">
                    </td>
                </tr>
               
                <tr>
                    <td>&nbsp;</td>
                    <td>
                        <input type="submit" name="btn" value="+">
                        <input type="submit" name="btn" value="-">
                        <input type="submit" name="btn" value="*">
                        <input type="submit" name="btn" value="/">
                        <input type="submit" name="btn" value="%">
                       
                    </td>
                </tr>
                <?php
                        if(isset($_POST['btn']))
                        {
                            $first_number=$_POST['first_number'];
                            $second_number=$_POST['second_number'];
                           
                            if($_POST['btn']=='+')
                            {
                                $result= $obj->add($first_number,$second_number);
                            }
                            if($_POST['btn']=='-')
                            {
                                $result= $obj->sub($first_number,$second_number);
                            }
                            if($_POST['btn']=='*')
                            {
                                $result= $obj->mul($first_number,$second_number);
                            }
                            if($_POST['btn']=='/')
                            {
                                $result= $obj->div($first_number,$second_number);
                            }
                            if($_POST['btn']=='%')
                            {
                                $result= $obj->rim($first_number,$second_number);
                            }
                           
                        }
                       
                       
                       
                        ?>
                <tr>
                    <td><?php echo $result['lbl'];?></td>
                    <td>
                        <?php echo $result['value'];?>
                    </td>
                </tr>
            </table>
        </form>
    </body>
</html>
(2)write code for calculator.php file:
<?php
class Calculator{
   function  add($first_number,$second_number)
    {   $result=array();
        $result['value']=$first_number+$second_number;
        $result['lbl']='Addition';
        return $result;
    }
  function  sub($first_number,$second_number)
    {
        $result=array();
        $result['value']=$first_number-$second_number;
        $result['lbl']='Subtruction';
        return $result;
    }
    function  mul($first_number,$second_number)
    {
        $result=array();
        $result['value']=$first_number*$second_number;
        $result['lbl']='Multiplication';
        return $result;
    }
    function  div($first_number,$second_number)
    {
        $result=array();

        if($second_number==0)
        {
            $result='Undefine';
            $result['lbl']='Divition';
            return $result;
        }
        else{
        $result=array();
        $result['value']=$first_number/$second_number;
        $result['lbl']='Divition';
        return $result;
        }
    }
  function  rim($first_number,$second_number)
    {
        $result=array();
        if($second_number==0)
        {
            $result='Undefine';
            $result['lbl']='Reminder';
            return $result;
        }
        else{
        $result['value']=$first_number%$second_number;
        $result['lbl']='Reminder';
        return $result;
        }
    }
}


?>

output:

================================================================================================================================================
another example :
(1)first write code for calculator.php  file:
<?php


class calculator
{

function display()
{
                print("<HTML>\n");
                print("<HEAD>\n");
                print("<TITLE>JavaScript with PHP Calculator</TITLE>\n");
                print("<SCRIPT LANGUAGE='JavaScript'>\n");
                print("/**************************************\n");
                print(" *  www.phpdevelopmenttricks.blogspot.com *\n");
                print(" **************************************/\n");
                print("\n");
                print("// Declare global variables\n");
                print("var displayText = \"\"\n");
                print("var num1\n");
                print("var num2\n");
                print("var operatorType\n");
                print("\n");
                print("// Write to display\n");
                print("function addDisplay(n){\n");
                print("document.calc.display.value = \"\"\n");
                print("displayText += n\n");
                print("document.calc.display.value = displayText\n");
                print("}\n");
                print("\n");
                print("// Addition\n");
                print("function addNumbers() {\n");
                print("if (displayText == \"\") {\n");
                print(" displayText = result\n");
                print(" }\n");
                print("num1 = parseFloat(displayText)\n");
                print("operatorType = \"add\"\n");
                print("displayText = \"\"\n");
                print("}\n");
                print("\n");
                print("// Subtraction\n");
                print("function subtractNumbers() {\n");
                print("if (displayText == \"\") {\n");
                print(" displayText = result\n");
                print(" }\n");
                print("num1 = parseFloat(displayText)\n");
                print("operatorType = \"subtract\"\n");
                print("displayText = \"\"\n");
                print("}\n");
                print("\n");
                print("// Multiplication\n");
                print("function multiplyNumbers() {\n");
                print("if (displayText == \"\") {\n");
                print(" displayText = result\n");
                print(" }\n");
                print("num1 = parseFloat(displayText)\n");
                print("operatorType = \"multiply\"\n");
                print("displayText = \"\"\n");
                print("}\n");
                print("\n");
                print("// Division\n");
                print("function divideNumbers() {\n");
                print("if (displayText == \"\") {\n");
                print(" displayText = result\n");
                print(" }\n");
                print("num1 = parseFloat(displayText)\n");
                print("operatorType = \"divide\"\n");
                print("displayText = \"\"\n");
                print("}\n");
                print("\n");
                print("// Sine\n");
                print("function sin() {\n");
                print("if (displayText == \"\") {\n");
                print(" num1 = result\n");
                print(" }\n");
                print("else {\n");
                print(" num1 = parseFloat(displayText)\n");
                print(" }\n");
                print("if (num1 != \"\") {\n");
                print(" result = Math.sin(num1)\n");
                print(" document.calc.display.value = result\n");
                print(" displayText = \"\"\n");
                print(" }\n");
                print("else {\n");
                print(" alert(\"Please write the number first\")\n");
                print(" }\n");
                print("}\n");
                print("\n");
                print("// Cosine\n");
                print("function cos() {\n");
                print("if (displayText == \"\") {\n");
                print(" num1 = result\n");
                print(" }\n");
                print("else {\n");
                print(" num1 = parseFloat(displayText)\n");
                print(" }\n");
                print("if (num1 != \"\") {\n");
                print(" result = Math.cos(num1)\n");
                print(" document.calc.display.value = result\n");
                print(" displayText = \"\"\n");
                print(" }\n");
                print("else {\n");
                print(" alert(\"Please write the number first\")\n");
                print(" }\n");
                print("}\n");
                print("\n");
                print("// ArcSine\n");
                print("function arcSin() {\n");
                print("if (displayText == \"\") {\n");
                print(" num1 = result\n");
                print(" }\n");
                print("else {\n");
                print(" num1 = parseFloat(displayText)\n");
                print(" }\n");
                print("if (num1 != \"\") {\n");
                print(" result = Math.asin(num1)\n");
                print(" document.calc.display.value = result\n");
                print(" displayText = \"\"\n");
                print(" }\n");
                print("else {\n");
                print(" alert(\"Please write the number first\")\n");
                print(" }\n");
                print("}\n");
                print("\n");
                print("// ArcCosine\n");
                print("function arcCos() {\n");
                print("if (displayText == \"\") {\n");
                print(" num1 = result\n");
                print(" }\n");
                print("else {\n");
                print(" num1 = parseFloat(displayText)\n");
                print(" }\n");
                print("if (num1 != \"\") {\n");
                print(" result = Math.acos(num1)\n");
                print(" document.calc.display.value = result\n");
                print(" displayText = \"\"\n");
                print(" }\n");
                print("else {\n");
                print(" alert(\"Please write the number first\")\n");
                print(" }\n");
                print("}\n");
                print("\n");
                print("// Square root\n");
                print("function sqrt() {\n");
                print("if (displayText == \"\") {\n");
                print(" num1 = result\n");
                print(" }\n");
                print("else {\n");
                print(" num1 = parseFloat(displayText)\n");
                print(" }\n");
                print("if (num1 != \"\") {\n");
                print(" result = Math.sqrt(num1)\n");
                print(" document.calc.display.value = result\n");
                print(" displayText = \"\"\n");
                print(" }\n");
                print("else {\n");
                print(" alert(\"Please write the number first\")\n");
                print(" }\n");
                print("}\n");
                print("\n");
                print("// Square number (number to the power of two)\n");
                print("function square() {\n");
                print("if (displayText == \"\") {\n");
                print(" num1 = result\n");
                print(" }\n");
                print("else {\n");
                print(" num1 = parseFloat(displayText)\n");
                print(" }\n");
                print("if (num1 != \"\") {\n");
                print(" result = num1 * num1\n");
                print(" document.calc.display.value = result\n");
                print(" displayText = \"\"\n");
                print(" }\n");
                print("else {\n");
                print(" alert(\"Please write the number first\")\n");
                print(" }\n");
                print("}\n");
                print("\n");
                print("// Convert degrees to radians\n");
                print("function degToRad() {\n");
                print("if (displayText == \"\") {\n");
                print(" num1 = result\n");
                print(" }\n");
                print("else {\n");
                print(" num1 = parseFloat(displayText)\n");
                print(" }\n");
                print("if (num1 != \"\") {\n");
                print(" result = num1 * Math.PI / 180\n");
                print(" document.calc.display.value = result\n");
                print(" displayText = \"\"\n");
                print(" }\n");
                print("else {\n");
                print(" alert(\"Please write the number first\")\n");
                print(" }\n");
                print("}\n");
                print("\n");
                print("// Convert radians to degrees\n");
                print("function radToDeg() {\n");
                print("if (displayText == \"\") {\n");
                print(" num1 = result\n");
                print(" }\n");
                print("else {\n");
                print(" num1 = parseFloat(displayText)\n");
                print(" }\n");
                print("if (num1 != \"\") {\n");
                print(" result = num1 * 180 / Math.PI\n");
                print(" document.calc.display.value = result\n");
                print(" displayText = \"\"\n");
                print(" }\n");
                print("else {\n");
                print(" alert(\"Please write the number first\")\n");
                print(" }\n");
                print("}\n");
                print("\n");
                print("// Calculations\n");
                print("function calculate() {\n");
                print("if (displayText != \"\") {\n");
                print(" num2 = parseFloat(displayText)\n");
                print("// Calc: Addition\n");
                print(" if (operatorType == \"add\") {\n");
                print(" result = num1 + num2\n");
                print(" document.calc.display.value = result\n");
                print(" }\n");
                print("// Calc: Subtraction\n");
                print(" if (operatorType == \"subtract\") {\n");
                print(" result = num1 - num2\n");
                print(" document.calc.display.value = result\n");
                print(" }\n");
                print("// Calc: Multiplication\n");
                print(" if (operatorType == \"multiply\") {\n");
                print(" result = num1 * num2\n");
                print(" document.calc.display.value = result\n");
                print(" }\n");
                print("// Calc: Division\n");
                print(" if (operatorType == \"divide\") {\n");
                print(" result = num1 / num2\n");
                print(" document.calc.display.value = result\n");
                print(" }\n");
                print(" displayText = \"\"\n");
                print(" }\n");
                print(" else {\n");
                print(" document.calc.display.value = \"Oops! Error!\"\n");
                print(" }\n");
                print("}\n");
                print("\n");
                print("// Clear the display\n");
                print("function clearDisplay() {\n");
                print("displayText = \"\"\n");
                print("document.calc.display.value = \"\"\n");
                print("}\n");
                print("</SCRIPT>\n");
                print("</HEAD>\n");
                print("<BODY BGCOLOR=\"#FFFFFF\" LINK=\"#9C6060\">\n");
                print("\n");
                print("<TABLE>\n");
                print("<TD> \n");
                print("<TABLE BORDER=0 BGCOLOR=\"#AF9999\">\n");
                print("<TD>\n");
                print("<TABLE border=\"0\" cellpadding=\"2\" cellspacing=\"2\">\n");
                print("<FORM NAME=calc>\n");
                print("\n");
                print("<!--\n");
                print("<TR><TD VALIGN=top colspan=6 ALIGN=\"center\"> <H2>Calculator</H2>
                </TD>\n");
                print("-->\n");
                print("<TR>\n");
                print(" <TD COLSPAN=5><INPUT TYPE=text SIZE=22 NAME=display></TD>\n");
                print("<TR align=\"left\" valign=\"middle\">\n");
                print(" <TD><INPUT TYPE=button NAME=\"one\" VALUE=\"  1   \"
                onClick=addDisplay(1)></TD>\n");
                print(" <TD><INPUT TYPE=button NAME=\"two\" VALUE=\"  2   \"
                onClick=addDisplay(2)></TD>\n");
                print(" <TD><INPUT TYPE=button NAME=\"three\" VALUE=\"  3   \"
                onClick=addDisplay(3)></TD>\n");
                print(" <TD><INPUT TYPE=button NAME=\"plus\" VALUE=\"  +   \"
                onClick=addNumbers()></TD>\n");
                print("<TR align=\"left\" valign=\"middle\">\n");
                print(" <TD><INPUT TYPE=button NAME=\"four\" VALUE=\"  4   \"
                onClick=addDisplay(4)></TD>\n");
                print(" <TD><INPUT TYPE=button NAME=\"five\" VALUE=\"  5   \"
                onClick=addDisplay(5)></TD>\n");
                print(" <TD><INPUT TYPE=button NAME=\"six\" VALUE=\"  6   \"
                onClick=addDisplay(6)></TD>\n");
                print(" <TD><INPUT TYPE=button NAME=\"minus\" VALUE=\"   -   \"
                onClick=subtractNumbers()></TD>\n");
                print("<TR align=\"left\" valign=\"middle\">\n");
                print(" <TD><INPUT TYPE=button NAME=\"seven\" VALUE=\"  7   \"
                onClick=addDisplay(7)></TD>\n");
                print(" <TD><INPUT TYPE=button NAME=\"eight\" VALUE=\"  8   \"
                onClick=addDisplay(8)></TD>\n");
                print(" <TD><INPUT TYPE=button NAME=\"nine\" VALUE=\"  9   \"
                onClick=addDisplay(9)></TD>\n");
                print(" <TD><INPUT TYPE=button NAME=\"multiplication\" VALUE=\"  *    \"
                onClick=multiplyNumbers()></TD>\n");
                print("<TR align=\"left\" valign=\"middle\">\n");
                print(" <TD><INPUT TYPE=button NAME=\"zero\" VALUE=\"  0   \"
                onClick=addDisplay(0)></TD>\n");
                print(" <TD><INPUT TYPE=button NAME=\"pi\" VALUE = \" Pi  \"
                onClick=addDisplay(Math.PI)> </TD> \n");
                print(" <TD><INPUT TYPE=button NAME=\"dot\" VALUE=\"   .   \"
                onClick=addDisplay(\".\")></TD>\n");
                print(" <TD><INPUT TYPE=button NAME=\"division\" VALUE=\"   /   \"
                onClick=divideNumbers()></TD>\n");
                print("<TR align=\"left\" valign=\"middle\">\n");
                print(" <TD><INPUT TYPE=button NAME=\"sqareroot\" VALUE=\"sqrt\"
                onClick=sqrt()></TD>\n");
                print(" <TD><INPUT TYPE=button NAME=\"squarex\" VALUE=\" x^2\"
                onClick=square()></TD>\n");
                print(" <TD><INPUT TYPE=button NAME=\"deg-rad\" VALUE=\"d2r \"
                onClick=degToRad()></TD>\n");
                print(" <TD><INPUT TYPE=button NAME=\"rad-deg\" VALUE=\"r2d \"
                onClick=radToDeg()></TD>\n");
                print("<TR align=\"left\" valign=\"middle\">\n");
                print(" <TD><INPUT TYPE=button NAME=\"sine\" VALUE=\" sin \"
                onClick=sin()></TD>\n");
                print(" <TD><INPUT TYPE=button NAME=\"arcsine\" VALUE=\"asin\"
                onClick=arcSin()></TD>\n");
                print(" <TD><INPUT TYPE=button NAME=\"cosine\" VALUE=\"cos\"
                onClick=cos()></TD>\n");
                print(" <TD><INPUT TYPE=button NAME=\"arccosine\" VALUE=\"acs\"
                onClick=arcCos()></TD>\n");
                print("\n");
                print("<TR align=\"left\" valign=\"middle\">\n");
                print(" <TD COLSPAN=2><INPUT TYPE=button NAME=clear VALUE=\"  Clear  \"
                onClick=clearDisplay()></TD>\n");
                print(" <TD COLSPAN=3><INPUT TYPE=button NAME=enter VALUE=\"     =      \"
                onClick=calculate()></TD>\n");
                print("\n");
                print("</TABLE>\n");
                print(" <!--\n");
                print(" <TD VALIGN=top> \n");
                print(" <B>NOTE:</B> All sine and cosine calculations are\n");
                print(" <br>done in radians. Remember to convert first\n");
                print(" <br>if using degrees.\n");
                print(" </TD>\n");
                print(" -->\n");
                print(" \n");
                print("</TABLE>\n");
                print("\n");
                print("\n");
                print("</TABLE>\n");
                print("</BODY>\n");
                print("</HTML>\n");
}

}

?>
(2)write code for  sample.php   file:
<?php
                // Sample calculator program - demos usage

                //include_once("calculator.php");
                require_once("calculator.php");
                $calc = new calculator();
                $calc->display();
?>
Note: now  run  “Localhost/sample.php file “

Then you will get following output:



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