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

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

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>

</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:

Id<input type=text name=id>

Name<input tpye=text name=name>

</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:

Id<input type=text name=id>

Name<input tpye=text name=name>

</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:

Id<input type=text name=id>

</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 :

Id<input type=text name=id>

</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:

Page title<input type=text name=pagetitle>

</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>

<table>

<tr>

<td>First Number </td>

<td>

</td>

</tr>

<tr>

<td>Ending Number </td>

<td>

</td>

</tr>

<tr>

<td>

</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['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("</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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Object oriented Programming Practice for including all database connectivity insert,update ,delete ,display code all in one in a single page :

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

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