↓ ↑ EOD; } /** * Function to create links for sorting and keeping the original querystring. * * @param string $column the name of the database column to sort by * @param string $route prepend this to the anchor href * * @return string with links to order by column. */ function orderby2($column, $route) { $asc = mergeQueryString(["orderby" => $column, "order" => "asc"], $route); $desc = mergeQueryString(["orderby" => $column, "order" => "desc"], $route); return << ↓ ↑ EOD; } /** * Use current querystring as base, extract it to an array, merge it * with incoming $options and recreate the querystring using the * resulting array. * * @param array $options to merge into exitins querystring * @param string $prepend to the resulting query string * * @return string as an url with the updated query string. */ function mergeQueryString($options, $prepend = "?") { // Parse querystring into array $query = []; parse_str($_SERVER["QUERY_STRING"], $query); // Merge query string with new options $query = array_merge($query, $options); // Build and return the modified querystring as url return $prepend . http_build_query($query); }