Add shortcode with attributes

This snippet is used to create a shortcode function for wordpress. This demonstrates the use of attributes as well.

Code Markup
function function_shortcode( $atts ) {
	$atts = shortcode_atts( array(
		'foo' => 'var1',
		'baz' => 'var2'
	), $atts, 'call_shortcode' );

	return "foo = {$atts['foo']}";
}
add_shortcode( 'call_shortcode', 'function_shortcode' );