How do i get output of this in alphabetical order
<?php
$termID = 5;
$taxonomyName="area";
$termchildren = get_term_children( $termID, $taxonomyName );
echo '<ul>';
foreach ($termchildren as $child) {
$term = get_term_by( 'id', $child, $taxonomyName );
echo '<li><a href="' . get_term_link( $term->name, $taxonomyName ) . '">' . $term->name . '</a></li>';
}
echo '</ul>';
?>
get_term_children() only outputs the term IDs, and you later get details for each term using get_term_by(). You can combine these queries in one using get_terms() with the child_of argument:
get_terms( $taxonomyName, array( 'child_of' => $termID ) );
By default this sorts by name. However, it is possible that the child_of argument undoes the sorting. In that case you can sort it again using usort(). See an example at this answer for a related problem.