How can PHP functions be indirectly called from HTML attributes like onclick="funk('3')" through includes in separate files?

To indirectly call PHP functions from HTML attributes like onclick="funk('3')" through includes in separate files, you can create a PHP file that contains the function you want to call and then include that file in your main PHP file where the HTML is located. This way, the function will be available for use in the HTML attributes.

// functions.php
<?php
function funk($param) {
    // Your function code here
    echo "Function called with parameter: " . $param;
}
?>

// main.php
<?php
include 'functions.php';
?>

<!DOCTYPE html>
<html>
<body>
<button onclick="funk('3')">Click me</button>
</body>
</html>