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function is not described

get_the_author_firstname() WP 1.5.0

Deprecated in 2.8.0. It is no longer supported and can be removed in future releases. Use get_the_author_meta() instead.

Retrieve the first name of the author of the current post.

  • See: get_the_author_meta()

No Hooks.

Return

String. The author's first name.

Usage

get_the_author_firstname();

Code of get the author firstname: wp-includes/deprecated.php VER 5.1.1

<?php
function get_the_author_firstname() {
	_deprecated_function( __FUNCTION__, '2.8.0', 'get_the_author_meta(\'first_name\')' );
	return get_the_author_meta('first_name');
}