[WordPress]WP-Membersをカスタム投稿で使う方法

functions.php

function my_custom_post_types() {
    $settings = array(
        'カスタム投稿A'  => 'block',
        'カスタム投稿B' => 'unblock',
    );
    return $settings;
}
 
add_filter( 'wpmem_block', 'block_custom_post_types' );
function block_custom_post_types( $block ) {
 
    global $post;
    $post_type = get_post_type( $post );
    $my_cpts = my_custom_post_types();
 
    if ( is_single() && ( array_key_exists( $post_type, $my_cpts ) ) ) {
 
        $cpt_block = ( $my_cpts[ $post_type ] == 'block' ) ? true : false;
 
        $meta = get_post_meta( get_the_ID(), '_wpmem_block', true );
        if( $cpt_block ) { 
            if ( isset( $meta ) && $meta == 0 ) {
                $block = false;
            }
        } else {
            if ( isset( $meta ) && $meta == 1 ) {
                $block = true;
            }
        }
    }
    return $block;
}