Change in function `get_post_field`

[sebastian.pisula]

I suggest change for function get_post_field();

1. Second param should be optional;
2. Add default value in param of function.

Additional I have question. Why in function get_the_ID() or get_post_title(); don't call function get_post_field ?

In many functions in first line is $post = get_post( $post );

If we insert my patch then we can use:

function get_the_ID() {
	return get_post_field('ID', null, 'display', false);
}

OR

function get_the_guid( $id = 0 ) {
	return apply_filters( 'get_the_guid', get_post_field( 'guid', $id ) );
}

[DrewAPicture]

#35949 was marked as a duplicate.