Error to validate XHTML 1.0 Strict

**c99net** · 09-21-2012 04:30 PM

Hello,

I'm a beginner in web programing ... and I'm trying to find a solution to validate my webpage in XHTML 1.0 strict
Anyway I got stuck at the following line :

<form name="calculator" method="post" action="calculator.php">

XHTML 1.0 Strict doesn't accept <form name> and I don't know how to convert in something that could work.
I know that are solution with javascript, but really I don't have a clue.

I'm tryong to validate the code on http://validator.w3.org/check

Here is the entire code :
<?php

require_once('base.php');
require_once('functions.php');

?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Calculator</title>
</head>
<body>

<h2>Calculator</h2>

<div>

</div>

<form name="calculator" method="post" action="calculator.php">
<div>
Field 1:
<br />
<input type="text" name="field1" value="<?php if(isset($_POST['field1'])) { echo $_POST['field1']; } ?>" />
</div>

<div>
Field 2: <br />
<input type="text" name="field2" value="<?php if(isset($_POST['field2'])) { echo $_POST['field2']; } ?>" />
</div>

<div>

Select an arithmetic operator: <br />
<select name="field3">
<option value="">Choisissez l'operateur:</option>

<?php

echo myselect();

?>

</select>
</div>

<div>

</div>

<div>
<input type="submit" name="submit" value="submit" />

</div>
</form>
</body>
</html>

<?php

if(isset($_POST['submit'])) {
echo mycalculator();
}

?>
</body>
</html>

**tracknut** · 09-22-2012 01:42 PM

From http://www.w3schools.com/tags/att_form_name.asp

Differences Between HTML and XHTML

In XHTML, the name attribute of the <form> tag is deprecated, and will be removed. Use the id attribute instead.

**c99net** · 09-22-2012 05:51 PM

Thank you for the response! I'm a beginner with php and with xhtml 1.0 even more... can you be more specific please?

**tracknut** · 09-22-2012 05:55 PM

It's saying that if you want to comply with xhtml 1.0 strict, you shouldn't use name="calculator" anymore, you should use id="calculator" instead. Just change the code for the <form> statement, and that'll probably clear it up.

Dave

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