this is my current form:
<form id="form1" name="form1" method="post" action="">
<p>
<label for="element1"></label>
x:
<input type="number" name="element1" id="element1" />
<br />
y:
<label for="element2"></label>
<input type="number" name="element2" id="element2" />
</p>
<p><strong>x+y=z</strong></p>
<p>z: <?php echo($_POST['element1'] + $_POST['element2']); ?>
</p>
</form>
i get errors as such:
Notice: Undefined index: element1 in /Applications/XAMPP/xamppfiles/htdocs/esskaybee/test.php on line 21
Notice: Undefined index: element2 in /Applications/XAMPP/xamppfiles/htdocs/esskaybee/test.php on line 21
0
line 21 codes: <p>z: <?php echo($_POST['element1'] + $_POST['element2']); ?>