How to sort an array by first variable?

Question

WordPress

plugin for wordpress woocommerce pdf invoices packing slips displays order information in pdf - product name, quantity and price, by material id

<?php $items = $this->get_order_items(); if( sizeof( $items ) > 0 ) : foreach( $items as $item_id => $item ) : ?>

how to sort by name?

Answer 1

And to invent a structure sorted by ourselves?
php.net/manual/ru/array.sorting.php