Question: My html code which receives the string:

```
<!DOCTYPE html>
<head>
    <title>title</title>
</head>
<body>
    <font face="Segoe UI" siz ="3">
    <form action="process.php" action="post">
    Suggestion: <input type="text" name="sgst" autocomplete="off">
    <input type="submit">
</form>
</font>
</body>
</html>

```

My PHP which processes it: (process.php)

```
<?php
    if ($_POST["sgst"]=="john") {
        echo "john";
    } else {
        echo "someone";
    }
?>

```

I am getting the error

> 
> Notice: Undefined index: sgst in C:\xampp\htdocs\test\process.php on line 2
> 
> 
> 

Can anyone tell me what is causing the error?

Answer: 
You're re-using the `action` attribute on the `form` element:

```
<form action="process.php" action="post">

```

I'm surprised the form is even posting at all given that. Though given the symptoms it seems to at least be enough to confuse the POST. I think you meant to use the `method` attribute:

```
<form action="process.php" method="post">

```

A couple other notes:

* You'll want to make use of `isset()` in your server-side code. The code shouldn't assume that all values will be posted, since the server can't control what a client sends it. Best to explicitly validate the data coming in before using it.
* `font` elements are pretty dated, and if they're not officially deprecated they should be :) CSS styling would be the way to go for client-side UI styles.
Try following

use Method attribute like `method="post"`in form tag instead of `action="post"`