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87 changes: 87 additions & 0 deletions PHP/calculator.php
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Original file line number Diff line number Diff line change
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<!doctype html>
<html lang="en">
<head>
<!-- Required meta tags -->

<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.3.1/dist/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">

<title>Calculator</title>


<style type="text/css">
.container
{
left: 25%;
padding: 100px;
text-align: center;
border: 1px solid blue;

}
input, select {
width: 40%;
padding: 12px 20px;
margin: 8px 0;
display: inline-block;
border: 1px solid #ccc;
border-radius: 4px;
box-sizing: border-box;
}

input[type=submit] {
width: 5%;
background-color: #1E90FF;
color: white;
padding: 14px 20px;
margin: 8px 0;
border: none;
border-radius: 4px;
cursor: pointer;
}
</style>



</head>
<body>


<?php


if(isset($_POST['operand'])){
$number1=$_POST['number1'];
$number2=$_POST['number2'];
$operand=$_POST['operand'];
if($operand=="+")
$answer=$number1+$number2;
else if($operand=="-")
$answer=$number1-$number2;
else if($operand=="x")
$answer=$number1*$number2;
else if($operand=="/")
$answer=$number1/$number2;


}?>
<div class="container">
<form method="post" action="">
<h1>Simple Calculator</h1>
<br>
First Number:<input name="number1" value=""required>
<br>
Second Number:<input name="number2" value=""required>
<br>
<input type="submit" name="operand" value="+">
<input type="submit" name="operand" value="-">
<input type="submit" name="operand" value="x">
<input type="submit" name="operand" value="/">
<br>
<br>Result: <input type='text' value="<?php echo $answer; ?>"><br>
</form>
</div>
</body>
</html>