WP_Query in wordpress and include ACF in results

Question

I try to fetch all posts from a custom post type in Wordpress and include the advanced custom fields (ACF) in the results as well, in order to generate a JSON file with the data.

$query = new WP_Query(array(
  'post_type' => 'resources',
  'post_status' => 'publish',
  'posts_per_page' => -1,
));

echo "var json=". json_encode($query->get_posts());

With a simple WP_Query, ACF data are not included and I have to iterate in the results and fetch all ACF manually one by one. Is there any way to include them in the original WP_Query results?

Answer 1

This would be my way of doing it.

Push whatever you want to the array and encode it.

<?php
$array = array();

$args         = array(
    'post_type'      => 'resources',
    'post_status'    => array( 'publish' ),
    'nopaging'       => true,
    'posts_per_page' => '-1',
    'order'          => 'ASC',
    'orderby'        => 'ID',

);
$queryResults = new WP_Query( $args );

if ( $queryResults->have_posts() ) {
    $counter = 0;
    while ( $queryResults->have_posts() ) {
        $queryResults->the_post();
        $array[ $counter ][ 'ID' ]           = get_the_ID();
        $array[ $counter ][ 'name' ]         = get_the_title();
        $array[ $counter ][ 'thumbnailURL' ] = get_the_post_thumbnail_url();
        $array[ $counter ][ 'place' ]        = get_field( 'resource_location' );
        //etc etc etc

        $counter++;
    }

    $jasoned = json_encode( $array, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES );
    echo $jasoned;
} else {
    //nothing found
}
wp_reset_postdata();