<?php
include 'simple_html_dom.php';
$url = 'http://en.wikipedia.org/wiki/Myst';
$html = file_get_html($url);
echo $html->find('body');
?>
This has been returning "Array" on the browser when I try to ONLY get the contents of the body element
Yes, because there may be many elements that fit that selector, so an array of elements is returned. If you only want the first matching element, use $html->find('body', 0). This is all described in the manual: http://simplehtmldom.sourceforge.net/manual.htm
<body>, but the find() method doesn't know or care. Any selector may match more than one element. That the specific selector 'body' should never match more than one element is irrelevant. What should find() do? If there's only one match, return that one match, otherwise return an array? That'd make your code more complicated since you'd always have to check whether it returned an array or an element. So, it's always returning an array.