WPDevelopersClub Code Challenge May 19,2015

WPDevelopersClub Code Challenge May 19,2015

//1.

$args = func_get_args();

//2.

$numargs = count($args);

//3.
//This is this weeks brain teaser.
//At first I was thinking about using sanitize_meta (the name just seemed so perfect...) but looking at the codex that seemed overly complicated and too much code.
//My next thought was to look at esc_html or the kses_"family" but they are only sanitizing/escaping HTML.
//Realizing I was only looking at WordPress and not PHP, I started searching for a (general) php function. 
//I found a bunch of filters that also seemed too complicated and then I stumbled upon a post series on PHP security that mentioned strip_tags.
//After reading the PHP manual I believe that this is the simplest way to sanitize: 

update_user_meta( $user_id, $meta_key, strip_tags($meta_value) );

//Now... there was the "if it is present" part of the questions which seems like an additional condition to the question...
//That would mean the if statement has to be changed... But I´ll wait to see if I´m reading too much into that ;)