Purges all data from the database.
Overrides ProfilerStorageInterface::purge
public function purge() {
$flags = \FilesystemIterator::SKIP_DOTS;
$iterator = new \RecursiveDirectoryIterator($this->folder, $flags);
$iterator = new \RecursiveIteratorIterator($iterator, \RecursiveIteratorIterator::CHILD_FIRST);
foreach ($iterator as $file) {
if (is_file($file)) {
unlink($file);
}
else {
rmdir($file);
}
}
}