Question

I have a php file which contains php function. I have to receive its return value in a part of my web page. Where do I put the include? in the head or in the body? how can I call the function inside my web page?

Answer 1

You can include the php file wherever you want, as long as it is before you call the method contained in it. You call the function between <?php ?> tags. You can use echo to output it to the page.

So if you have myfunc.php that looks like this:

<?php
    function myfunc() {
        return 'asdf';
    }
?>

Then in php that includes it you can do:

<?php
    include('myfunc.php');
    echo myfunc();
?>

You can also choose to put the include method anywhere above that makes sense. The very top of the file is a common choice.

Also note that if your php file contains functions, you should probably be using require_once instead of include. See: http://php.net/manual/en/function.require-once.php