gistfile1.php

<?php
	$storeids = array();
	foreach( $store_merchants as $merchantID ){
	      $storeid = get_user_meta( $merchantID, 'kostnadsstalle', true );
	      $storeids[$storeid] = $merchantID;
	}
	asort( $storeids );
	$lastid = end( $storeids );

	if ( 1 < count( $store_merchants ) ) {
		if( $lastid != $wp_user->ID ) {
			update_user_meta( $wp_user->ID, 'retired', 1 );
		}
	}