call php function on form submition

Question

Hi im trying to generate this a code from this php function

         <?php function generateRandomString($length = 6) {
    return substr(str_shuffle(str_repeat($x='0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ', ceil($length/strlen($x)) )),1,$length);
}

echo  generateRandomString(); ?>

when this <button>Submit</button> is clicked. It is a submition button for a form in HTML

Many Thanks in advance:)

Answer 1

For help on the basics of setting up a form in HTML: https://www.w3schools.com/html/html_forms.asp

You'll need to target your PHP script in the form action. https://www.php.net/manual/en/tutorial.forms.php

Using the script exactly as you have it will simply send the plain text random string back to your browser.