I have a HTML form embedded within a PHP file with an onclick button which summons a javascript function.

```
<form name="addStamp">
    Validation Code:<br>
    <input type="number" name="inputcode"><br>
    <input type="text" name="message" id="message"><br>
    <input type="button" name="submitbutton" value="Submit" onClick="stampme()">
</form>

```

The function looks at the entry in "inputcode" field and:

* if valid returns the word "**valid**" into the "message" field
* if void returns the word "**failed**" into the "message" field

Script snippet that populates the form:

```
document.addStamp.message.value = msg;
document.addStamp.inputcode.value = "";
} else if (document.addStamp.inputcode.value != test) {
document.addStamp.message.value = msg2;
}

```

What I can't figure out is now how to bring the result back into php so I can use it to perform a `update_user_meta` task.

All of the above happens without refreshing the page and I need to get the result of the javascript function back into php without refreshing the page also.

Any help please?