Creates or re-opens a child section.

Parameters

string|null $id null to create a new section, the identifier to re-open an existing one.:

Return value

Section A child section

File

webprofiler/src/Stopwatch.php, line 195

Class

Section

@internal This class is for internal usage only

Namespace

Drupal\webprofiler

Code

public function open($id) {
    if (NULL === ($session = $this->get($id))) {
        $session = $this->children[] = new self(microtime(TRUE) * 1000);
    }
    return $session;
}