JSON Output

json-output.php

function ssa_get_safe_podcast_json() {
	$args               = array(
		'post_type'      => 'podcast',
		'posts_per_page' => - 1,
		'post_status'    => 'any',
		'orderby'        => 'ID',
		'meta_query'     => array(
			'relation' => 'OR',
			array(
				'key'     => 'audio_file',
				'compare' => 'EXISTS',
			),
			array(
				'key'     => 'audio_file',
				'value'   => '',
				'compare' => '!=',
			)
		),
	);
	$podcast_query      = new WP_Query( $args );
	$podcasts           = $podcast_query->get_posts();
	
	$podcast_data = array();
	foreach ( $podcasts as $podcast ) {
		$podcast_data[ $podcast->ID ] = array(
			'post_id'      => $podcast->ID,
			'post_title'   => $podcast->post_title,
			'post_content' => '',
			'post_date'    => $podcast->post_date,
			'audio_file'   => get_post_meta( $podcast->ID, 'audio_file', true ),
		);
	}
	echo '<textarea cols="200" rows="25">';
	print_r( wp_json_encode( $podcast_data ) );
	echo '</textarea>';
}