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Help Calculator Code
- Thread starter Tingyun
- Start date
-
- Tags
- calculator code
Sure, here's a simple PHP calculator code:
This code creates a simple HTML form with two input fields for numbers and a dropdown menu to select the operator. When the user submits the form, the PHP code retrieves the values of the input fields and the selected operator, performs the calculation using a switch statement, and displays the result on the page.
Code:
<!DOCTYPE html>
<html>
<head>
<title>Simple Calculator</title>
</head>
<body>
<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
<label for="num1">Number 1:</label>
<input type="number" name="num1" id="num1" required><br><br>
<label for="num2">Number 2:</label>
<input type="number" name="num2" id="num2" required><br><br>
<label for="operator">Operator:</label>
<select name="operator" id="operator">
<option value="+">Addition</option>
<option value="-">Subtraction</option>
<option value="*">Multiplication</option>
<option value="/">Division</option>
</select><br><br>
<input type="submit" name="submit" value="Calculate">
</form>
<?php
if(isset($_POST['submit'])){
$num1 = $_POST['num1'];
$num2 = $_POST['num2'];
$operator = $_POST['operator'];
switch($operator){
case '+':
$result = $num1 + $num2;
break;
case '-':
$result = $num1 - $num2;
break;
case '*':
$result = $num1 * $num2;
break;
case '/':
$result = $num1 / $num2;
break;
default:
$result = "Invalid operator";
break;
}
echo "Result: " . $result;
}
?>
</body>
</html>This code creates a simple HTML form with two input fields for numbers and a dropdown menu to select the operator. When the user submits the form, the PHP code retrieves the values of the input fields and the selected operator, performs the calculation using a switch statement, and displays the result on the page.
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