How to get the user meta data for a post?

Question

Im trying to get the user meta data from a post but only getting the one user:

$args = array(
    'numberposts' => 10,
    'offset' => 0,
    'category' => 0,
    'orderby' => 'post_date',
    'order' => 'DESC',
    'post_type' => 'post',
    'post_status' => 'publish',
    'suppress_filters' => true
  );

  $recent_posts = wp_get_recent_posts( $args, ARRAY_A );

foreach ($recent_posts as $post) {
 $user_id = get_the_author_meta('ID', true) // is this correct
 // Is there a function that I need to pass the post ID ($post["ID"])?
 var_dump($user_id);
}

When another user makes a post, I cant get their meta data. How, please?

Answer 1

You can pass the post's author as an argument to get_the_author_meta:

get_the_author_meta('ID', $post->post_author);

The second argument is the user's ID. This is stored in the post object in your loop, which you can access it by using $post->post_author.

Reason

The reason behind the current code of yours that isn't working is this piece of code that is included in the get_the_author_meta():

if ( ! $user_id ) {
    global $authordata;
    $user_id = isset( $authordata->ID ) ? $authordata->ID : 0;
} else {
    $authordata = get_userdata( $user_id );
}

If you set the second argument to true ( which is the $user_id ), it will trigger the else, and by triggering the else you are passing a true to the get_userdata(), which will obviously won't work.

Take a look at this page of code reference for more details.