How to pull custom field data into Wordpress shortcodes

Question

I am creating a series of shortcodes that link to pages on a custom post type called heroes. I was wondering how I can link the info in my shortcode to that custom post type's post so I can pull in custom field data into the shortcode to use.

Here is the shortcode I am using

add_shortcode('illidan', 'illidan');

function illidan($args) {
    $default = array('icon' => 'true');
    $args = wp_parse_args($args, $default);

    $herotip = '';
    if ($args['icon']) {
        $herotip.= '<img src="http://stormable.com/img/heroes/illidan/illidan-ab1.png">';
    }

    $herotip.= '<a href="http://stormable.com/heroes/illidan/">Illidan</a>
    This is where I would like to pull in custom field data from the post illidan
    For example <?php echo get_post_meta($post->ID, "health-lvl1", true); ?>
    ';

    return $herotip;
}

So under the link I would like to be able to pull in data that I have in custom fields from the post Illidan under the custom post type heroes although I'm not sure how to link it to that page.

Answer 1

This return the custom field value from the post meta

 // returns the value of health-gain
 $health_gain = get_post_meta( 11, 'health-gain', true); 


 $herotip.= '<a href="http://stormable.com/heroes/illidan/">Illidan</a>
This is where I would like to pull in custom field data from the post illidan
For example '. $health_gain;

take a look on this link get_post_meta(), Implement it into your shortcode function where ever you want.

I Suggest you to take a look on this article http://wp.smashingmagazine.com/2012/05/01/wordpress-shortcodes-complete-guide/, tells you the more robust and right way to create a shortcode.