Check If post id exist in custom post type , outside of loop

Question

How can I search in database if id exist in a post type?. I want to search $id=123 in post type 'movies' like this, is this the correct way to do it?

   $content = get_posts('post_type=movies&id=$id');

    if ($content)
            echo "post id exist";

        else
            echo "post id doesn't exist";

Answer 1

You can use:

echo 'movie' === get_post_type( 123 ) ? 'Yes' : 'No'; 

But if you need to check it many times in your theme, you might consider defining your own helper function:

if( ! function_exists( 'is_movie' ) )
{
    function is_movie( $mixed = null )
    {
        return 'movie' === get_post_type( $mixed );
    }
}

It might return true when $mixed is empty, \WP_Post object or a post ID.

So if you want to know if there exists a movie with ID 123:

echo is_movie( 123 ) ? 'Yes' : 'No';

or just is_move() within the loop, to check the current post ID.

If you only need to check if the ID 123 exists, then just use get_post().

For example:

echo is_null( get_post( 123 ) ) ? 'No' : 'Yes';