Write a script to implement a simple calculator for mathematical operations
Here is a PHP script for Simple Calculator:
PROGRAM
<html> <head> <title>PHP Calculator</title> </head> <body> <form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>"> <label>Enter First Number:</label> <input type="number" name="num1"><br><br> <label>Enter Second Number:</label> <input type="number" name="num2"><br><br> <label>Select Operation:</label> <select name="operator"> <option value="+">Addition</option> <option value="-">Subtraction</option> <option value="*">Multiplication</option> <option value="/">Division</option> </select><br><br> <input type="submit" value="Calculate"> </form> <?php if ($_SERVER["REQUEST_METHOD"] == "POST") { $num1 = $_POST["num1"]; $num2 = $_POST["num2"]; $operator = $_POST["operator"]; $result = 0; if ($operator == "+") { $result = $num1 + $num2; } elseif ($operator == "-") { $result = $num1 - $num2; } elseif ($operator == "*") { $result = $num1 * $num2; } elseif ($operator == "/") { $result = $num1 / $num2; } echo "Result: " . $result; } ?> </body></html>OUTPUT
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.png "Write a script to implement a simple calculator for mathematical operations")
.png "Write a script to implement a simple calculator for mathematical operations")
Explanation
- The HTML form is used to get input from the user, such as two numbers and the operation to perform.
- The PHP script processes the form data by checking which operator was selected and performs the appropriate mathematical operation on the two numbers.
- The result of the calculation is displayed on the page.
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