如何在一个表单html和php上设置两个按钮

Question

This form should calculate numbers and save Now there are two buttons One is call Calculator and two call Save If I press Calculator I get the form action is going to file name save.php And I do not want it that way How can I set it up that button do something else Example

Calculator = Calculator

Save = save.php

Is it possible to set it Because it is one form Thanks to anyone who can help

<?php
error_reporting (0);
$NUM = $_POST["NUM"];
$NUM2 = $_POST["NUM2"];
$NUM = "$NUM";
$NUM2 = "$NUM2";
$subtotal= $NUM+$NUM2;
?>

<form action="save.php" method="POST" name="Calculator">
<p>
<input name="NUM" type="text" value="<?php echo $_POST["NUM"]; ?>" />
</p>
<p>+</p>
<p>
<input name="NUM2" type="text" value="<?php echo $_POST["NUM2"]; ?>" />
</p>
<p>
<input name="subtotal" type="text" value="<?php echo "$subtotal";?>" />
 </p>
<p>
<input name="submit" type="submit" value="Calculator" />
 <p>
<input name="submit" type="submit" value="Save" />
</p>
</form>

Answer 1

You can have all the logic in a single PHP script (no need to direct to a different script depending on the button). If the logic is complicated, use include statements in order to separate the code.

Name the buttons differently:

<input name="calculator_submit" type="submit" value="Calculator" />
<input name="save_submit" type="submit" value="Save" />

Then in PHP:

if (isset($_GET['calculator_submit'])) {
  // ...
} else if (isset($_GET['save_submit'])) {
  // ...
} else {
  // ...
}

If you really need different PHP script, then you'll have to go with Javascript (function will change the form action when a submit is clicked).