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- <!DOCTYPE html>
- <html>
- <head>
- <title>Calculator</title>
- </head>
- <body>
- <div>
- <h1><font color="red">Calculator</h1></font>
- </div>
- <p>
- <form method="get" action="calculation.php">
- <input name="v1">
- <select name="action">
- <option value="plus">+</option>
- <option value="minus">-</option>
- <option value="substract">*</option>
- <option value="division">/</option>
- </select>
- <input name="v2"/>
- <input type="submit" name="submit" value="Submit"/>
- </form>
- </p>
- <p>
- <?php
- if(isset($_GET["submit"])){
- $v1 = $_GET["v1"];
- $v2 = $_GET["v2"];
- if($_GET["action"]=="plus"){
- $result = $v1 + $v2;
- echo "<h1>$v1 + $v2 ";
- }if($_GET["action"]=="minus"){
- $result = $v1 - $v2;
- echo "<h1>$v1 - $v2 ";
- }if($_GET["action"]=="substract"){
- $result = $v1 * $v2;
- echo "<h1>$v1 * $v2 ";
- }if($_GET["action"]=="division"){
- $result = $v1 / $v2;
- echo "<h1>$v1 / $v2 ";
- }
- echo "= $result</h1>";
- }
- ?>
- </p>
- </body>
- </html>
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