[WordPress] Get Taxonomy By Term ID

00-get-taxonomy-by-term-id.php

<?php

/**
 * Retrieves the taxonomy name associated on the specified $term_id. 
 *
 * @access private
 * @param  int    $term_id  The term ID from which to retrieve the taxonomy name.
 * @return string $taxonomy The name of the taxaonomy associated with the term ID.
 */
private function get_taxonomy_by_term_id( $term_id ) {
	
	// We can't get a term if we don't have a term ID.
	if ( 0 === $term_id || null === $term_id ) {
		return;
	}
	
	// Grab the term using the ID then read the name from the associated taxonomy.
	$taxonomy = '';
	$term = get_term( $term_id );
	if ( false !== $term ) {
		$taxonomy = $term->taxonomy;
	}

	return trim( $taxonomy );
}