Sending variable from form to a function

[basil]

I know I can use something like:

Echo "<FORM ACTION=\"myfile.php\" METHOD=\"POST\"....

to send form data to a file (in this case myfile.php). But what if I want to allow a user to input data, click a button, but stay in the same php file and just send the input data to a function that is within the same file. Is that possible?

Thanks,
Basil

[Frederick]

Example if page is called myPage.php

<?php
if ($submit) {
    // Place your SQL query here
} else {
?>
    <form action="myPage.php" method="post">
    <input type="text" name="emailAddress" size="30">
    <input type="submit" name="submit" value="Send Now">
    </form>
<?php
}
?>

[basil]

Not trying to do an SQL query. I just want to send the data submitted bia the form to a function contained within the same php file. For example, the page will display a field and a submit button, and when someone enters a value and clicks submit, I want the data to be send to a function I have defined elsewhere in teh same php file. Lets say the function is called calculate(), for example.

[Frederick]

It is the same principal, you just place your function in the area that I stated "// Place your SQL query here" and have your function reference the "name" of the text field.