[Resolved] How to display information from a custom post in a custom shortcode

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[francescoG-3]

Hi, thanks, now the gallery is displayed fine.

So, now I don't know how to display the correct vlues with my custom shortcodes...

To display the age into the Profile CPT post I use this code, but what snipped permit to display the correct age into the Page?

add_shortcode( 'iam-eta', 'wpv_post_age_shortcode');
function wpv_post_age_shortcode( $atts ) {
   global $post;
 $timestamp = get_post_meta( $post->ID, 'wpcf-data-di-nascita', true );
$age = floor((time() - $timestamp) / ( 60*60*24* 365 )) ;
return $age;
}

To display the category list in the Profile CPT post I use this code, but what code permit to display the category list in the page?

// Add Shortcode
function attivita_incontramici() {
$terms = get_the_terms($post->ID, 'attivita');
$count = count($terms);
if ( $count > 0 ) {
    foreach ( $terms as $term ) {
        $result .= "<li><span class='logo-serv'>" . $term->name . "</span></li>";
    }
}
return "<ul class='servizi'>" . $result . "</ul>";
}
add_shortcode( 'attivita', 'attivita_incontramici' );

[Christian Cox]

Instead of getting post ID from the global $post, you can use shortcode attributes to pass a post ID into the shortcode.
https://codex.wordpress.org/Shortcode_API

Here is an example:

add_shortcode( 'iam-eta', 'wpv_post_age_shortcode');
function wpv_post_age_shortcode( $atts ) {
 $a = shortcode_atts( array(
		'postid' => 0,
	), $atts );
 $timestamp = get_post_meta( $a['postid'], 'wpcf-data-di-nascita', true );
$age = floor((time() - $timestamp) / ( 60*60*24* 365 )) ;
return $age;
}

[iam-eta postid="[wpv-post-id]"]

[francescoG-3]

Hi Christian,
the code with your snipped generate an error, and I have a blank page instead of the Crea Profilo Page content.

[Christian Cox]

This code is valid, and works for me in my local environment. What is the error?

[francescoG-3]

Hi, sorry, it work.

So I had duplicated the shortcode, pasted your code and changed the name of the shortcode but I didn't had change the name of the function and this generate the issue.
I have solved.

[francescoG-3]

My issue is resolved now. Thank you!