This is how you create Shortcode in WordPress from the function.php
// [bartag foo="foo-value"]
function bartag_func( $atts ) {
$a = shortcode_atts( array(
'foo' => 'something',
'bar' => 'something else',
), $atts );
return "foo = {$a['foo']}";
}
add_shortcode( 'bartag', 'bartag_func' );
//Show the short code in the site
[bartag foo="bar" bar="bing"]
