WordPress Challenge for May 18, 2015

challenge_05182015.php

<?php

/**
 * As part of our weekly challenges, take a crack at this one.
 * To play along, 
 * 1.  Copy the code into a Gist, 
 * 2.  Answer each of the questions by supplying the code;
 * 3.  Provide some notes as to your train of thought;
 * 4.  Then submit the gist's URL for us to review.
 * 
 * We'll respond back and make comments in your gist.
 * Happy Coding </>
 * Tonya @hellofromtonya
 */

function foo( $user_id ) {
    // Q1 How can I get the arguments pass when foo is called?

    // Q2 How can I get a count of the number arguments passed into foo?

    // Q3 How would you sanitize the meta value, if it is present?
    
    if ( $meta_value && $meta_key ) {
        update_user_meta( $user_id, $meta_key, $meta_value );
    }
}

$user_id    = 1;
$meta_key   = 'some_meta_key';
$meta_value = 'bar';

foo( $user_id, $meta_key, $meta_value );