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<?php function extractRouteParameterComponents($routeParameter) { $regexPattern = "/^{(\w+)(?::(.+))?}(\?)?$/"; if (preg_match($regexPattern, $routeParameter, $matches)) { $name = $matches[1]; $pattern = empty($matches[2]) ? "[^/]" : $matches[2]; $optional = isset($matches[3]); return [$name, $pattern, $optional]; } } $routeParameter = "{id:[0-9]+}?"; list($name, $pattern, $optional) = extractRouteParameterComponents($routeParameter); var_dump($name, $pattern, $optional);