PHP head函数代码示例

 protected function execute(ConduitAPIRequest $request)
 {
     $corpus = $request->getValue('corpus');
     $aux_fields = DifferentialFieldSelector::newSelector()->getFieldSpecifications();
     foreach ($aux_fields as $key => $aux_field) {
         if (!$aux_field->shouldAppearOnCommitMessage()) {
             unset($aux_fields[$key]);
         }
     }
     $aux_fields = mpull($aux_fields, null, 'getCommitMessageKey');
     // Build a map from labels (like "Test Plan") to field keys
     // (like "testPlan").
     $label_map = $this->buildLabelMap($aux_fields);
     $field_map = $this->parseCommitMessage($corpus, $label_map);
     $fields = array();
     $errors = array();
     foreach ($field_map as $field_key => $field_value) {
         $field = $aux_fields[$field_key];
         try {
             $fields[$field_key] = $field->parseValueFromCommitMessage($field_value);
         } catch (DifferentialFieldParseException $ex) {
             $field_label = $field->renderLabelForCommitMessage();
             $errors[] = "Error parsing field '{$field_label}': " . $ex->getMessage();
         }
     }
     // TODO: This is for backcompat only, remove once Arcanist gets updated.
     $error = head($errors);
     return array('error' => $error, 'errors' => $errors, 'fields' => $fields);
 }

 private function processMailCommands(PhabricatorMetaMTAReceivedMail $mail, array $command_list)
 {
     $viewer = $this->getActor();
     $object = $this->getMailReceiver();
     $list = MetaMTAEmailTransactionCommand::getAllCommandsForObject($object);
     $map = MetaMTAEmailTransactionCommand::getCommandMap($list);
     $xactions = array();
     foreach ($command_list as $command_argv) {
         $command = head($command_argv);
         $argv = array_slice($command_argv, 1);
         $handler = idx($map, phutil_utf8_strtolower($command));
         if ($handler) {
             $results = $handler->buildTransactions($viewer, $object, $mail, $command, $argv);
             foreach ($results as $result) {
                 $xactions[] = $result;
             }
         } else {
             $valid_commands = array();
             foreach ($list as $valid_command) {
                 $aliases = $valid_command->getCommandAliases();
                 if ($aliases) {
                     foreach ($aliases as $key => $alias) {
                         $aliases[$key] = '!' . $alias;
                     }
                     $aliases = implode(', ', $aliases);
                     $valid_commands[] = pht('!%s (or %s)', $valid_command->getCommand(), $aliases);
                 } else {
                     $valid_commands[] = '!' . $valid_command->getCommand();
                 }
             }
             throw new Exception(pht('The command "!%s" is not a supported mail command. Valid ' . 'commands for this object are: %s.', $command, implode(', ', $valid_commands)));
         }
     }
     return $xactions;
 }

 public function execute(PhutilArgumentParser $args)
 {
     $emails = $args->getArg('email');
     if (!$emails) {
         throw new PhutilArgumentUsageException(pht('You must specify the email to verify.'));
     } else {
         if (count($emails) > 1) {
             throw new PhutilArgumentUsageException(pht('You can only verify one address at a time.'));
         }
     }
     $address = head($emails);
     $email = id(new PhabricatorUserEmail())->loadOneWhere('address = %s', $address);
     if (!$email) {
         throw new PhutilArgumentUsageException(pht('No email exists with address "%s"!', $address));
     }
     $viewer = $this->getViewer();
     $user = id(new PhabricatorPeopleQuery())->setViewer($viewer)->withPHIDs(array($email->getUserPHID()))->executeOne();
     if (!$user) {
         throw new Exception(pht('Email record has invalid user PHID!'));
     }
     $editor = id(new PhabricatorUserEditor())->setActor($viewer)->verifyEmail($user, $email);
     $console = PhutilConsole::getConsole();
     $console->writeOut("%s\n", pht('Done.'));
     return 0;
 }

 public static function getLog()
 {
     if (!self::$log) {
         $path = PhabricatorEnv::getEnvConfig('log.ssh.path');
         $format = PhabricatorEnv::getEnvConfig('log.ssh.format');
         $format = nonempty($format, "[%D]\t%p\t%h\t%r\t%s\t%S\t%u\t%C\t%U\t%c\t%T\t%i\t%o");
         // NOTE: Path may be null. We still create the log, it just won't write
         // anywhere.
         $data = array('D' => date('r'), 'h' => php_uname('n'), 'p' => getmypid(), 'e' => time());
         $sudo_user = PhabricatorEnv::getEnvConfig('phd.user');
         if (strlen($sudo_user)) {
             $data['S'] = $sudo_user;
         }
         if (function_exists('posix_geteuid')) {
             $system_uid = posix_geteuid();
             $system_info = posix_getpwuid($system_uid);
             $data['s'] = idx($system_info, 'name');
         }
         $client = getenv('SSH_CLIENT');
         if (strlen($client)) {
             $remote_address = head(explode(' ', $client));
             $data['r'] = $remote_address;
         }
         $log = id(new PhutilDeferredLog($path, $format))->setFailQuietly(true)->setData($data);
         self::$log = $log;
     }
     return self::$log;
 }

 protected function doLock($wait)
 {
     $conn = $this->conn;
     if (!$conn) {
         // Try to reuse a connection from the connection pool.
         $conn = array_pop(self::$pool);
     }
     if (!$conn) {
         // NOTE: Using the 'repository' database somewhat arbitrarily, mostly
         // because the first client of locks is the repository daemons. We must
         // always use the same database for all locks, but don't access any
         // tables so we could use any valid database. We could build a
         // database-free connection instead, but that's kind of messy and we
         // might forget about it in the future if we vertically partition the
         // application.
         $dao = new PhabricatorRepository();
         // NOTE: Using "force_new" to make sure each lock is on its own
         // connection.
         $conn = $dao->establishConnection('w', $force_new = true);
         // NOTE: Since MySQL will disconnect us if we're idle for too long, we set
         // the wait_timeout to an enormous value, to allow us to hold the
         // connection open indefinitely (or, at least, for 24 days).
         $max_allowed_timeout = 2147483;
         queryfx($conn, 'SET wait_timeout = %d', $max_allowed_timeout);
     }
     $result = queryfx_one($conn, 'SELECT GET_LOCK(%s, %f)', 'phabricator:' . $this->lockname, $wait);
     $ok = head($result);
     if (!$ok) {
         throw new PhutilLockException($this->getName());
     }
     $this->conn = $conn;
 }

 /**
  * Get the route information for a given route.
  *
  * @param  \Illuminate\Routing\Route $route
  * @return array
  */
 protected function getRouteInformation($route)
 {
     if (!is_a($route, 'Illuminate\\Routing\\Route')) {
         return array();
     }
     $uri = head($route->methods()) . ' ' . $route->uri();
     $action = $route->getAction();
     $result = array('uri' => $uri ?: '-');
     $result = array_merge($result, $action);
     if (isset($action['controller']) && strpos($action['controller'], '@') !== false) {
         list($controller, $method) = explode('@', $action['controller']);
         if (class_exists($controller) && method_exists($controller, $method)) {
             $reflector = new \ReflectionMethod($controller, $method);
         }
         unset($result['uses']);
     } elseif (isset($action['uses']) && $action['uses'] instanceof \Closure) {
         $reflector = new \ReflectionFunction($action['uses']);
         $result['uses'] = $this->formatVar($result['uses']);
     }
     if (isset($reflector)) {
         $filename = ltrim(str_replace(base_path(), '', $reflector->getFileName()), '/');
         $result['file'] = $filename . ':' . $reflector->getStartLine() . '-' . $reflector->getEndLine();
     }
     if ($before = $this->getBeforeFilters($route)) {
         $result['before'] = $before;
     }
     if ($after = $this->getAfterFilters($route)) {
         $result['after'] = $after;
     }
     return $result;
 }

 public function handleRequest(AphrontRequest $request)
 {
     $viewer = $request->getViewer();
     $stories = id(new PhabricatorNotificationQuery())->setViewer($viewer)->withUserPHIDs(array($viewer->getPHID()))->withKeys(array($request->getStr('key')))->execute();
     if (!$stories) {
         return $this->buildEmptyResponse();
     }
     $story = head($stories);
     if ($story->getAuthorPHID() === $viewer->getPHID()) {
         // Don't show the user individual notifications about their own
         // actions. Primarily, this stops pages from showing notifications
         // immediately after you click "Submit" on a comment form if the
         // notification server returns faster than the web server.
         // TODO: It would be nice to retain the "page updated" bubble on copies
         // of the page that are open in other tabs, but there isn't an obvious
         // way to do this easily.
         return $this->buildEmptyResponse();
     }
     $builder = id(new PhabricatorNotificationBuilder(array($story)))->setUser($viewer)->setShowTimestamps(false);
     $content = $builder->buildView()->render();
     $dict = $builder->buildDict();
     $data = $dict[0];
     $response = array('pertinent' => true, 'primaryObjectPHID' => $story->getPrimaryObjectPHID(), 'desktopReady' => $data['desktopReady'], 'href' => $data['href'], 'icon' => $data['icon'], 'title' => $data['title'], 'body' => $data['body'], 'content' => hsprintf('%s', $content));
     return id(new AphrontAjaxResponse())->setContent($response);
 }

 public function execute(HarbormasterBuild $build, HarbormasterBuildTarget $build_target)
 {
     // We can only wait when building against commits.
     $buildable = $build->getBuildable();
     $object = $buildable->getBuildableObject();
     if (!$object instanceof PhabricatorRepositoryCommit) {
         return;
     }
     // Block until all previous builds of the same build plan have
     // finished.
     $plan = $build->getBuildPlan();
     $existing_logs = id(new HarbormasterBuildLogQuery())->setViewer(PhabricatorUser::getOmnipotentUser())->withBuildTargetPHIDs(array($build_target->getPHID()))->execute();
     if ($existing_logs) {
         $log = head($existing_logs);
     } else {
         $log = $build->createLog($build_target, 'waiting', 'blockers');
     }
     $blockers = $this->getBlockers($object, $plan, $build);
     if ($blockers) {
         $log->start();
         $log->append(pht("Blocked by: %s\n", implode(',', $blockers)));
         $log->finalize();
     }
     if ($blockers) {
         throw new PhabricatorWorkerYieldException(15);
     }
 }

 public function execute(PhutilArgumentParser $args)
 {
     $viewer = $this->getViewer();
     $argv = $args->getArg('argv');
     if (count($argv) !== 2) {
         throw new PhutilArgumentUsageException(pht('Specify a commit and a revision to attach it to.'));
     }
     $commit_name = head($argv);
     $revision_name = last($argv);
     $commit = id(new DiffusionCommitQuery())->setViewer($viewer)->withIdentifiers(array($commit_name))->executeOne();
     if (!$commit) {
         throw new PhutilArgumentUsageException(pht('Commit "%s" does not exist.', $commit_name));
     }
     $revision = id(new PhabricatorObjectQuery())->setViewer($viewer)->withNames(array($revision_name))->executeOne();
     if (!$revision) {
         throw new PhutilArgumentUsageException(pht('Revision "%s" does not exist.', $revision_name));
     }
     if (!$revision instanceof DifferentialRevision) {
         throw new PhutilArgumentUsageException(pht('Object "%s" must be a Differential revision.', $revision_name));
     }
     // Reload the revision to get the active diff.
     $revision = id(new DifferentialRevisionQuery())->setViewer($viewer)->withIDs(array($revision->getID()))->needActiveDiffs(true)->executeOne();
     $differential_phid = id(new PhabricatorDifferentialApplication())->getPHID();
     $extraction_engine = id(new DifferentialDiffExtractionEngine())->setViewer($viewer)->setAuthorPHID($differential_phid);
     $content_source = PhabricatorContentSource::newForSource(PhabricatorContentSource::SOURCE_CONSOLE, array());
     $extraction_engine->updateRevisionWithCommit($revision, $commit, array(), $content_source);
     echo tsprintf("%s\n", pht('Attached "%s" to "%s".', $commit->getMonogram(), $revision->getMonogram()));
 }

 public function reduceProxyResponse()
 {
     if ($this->transactionView) {
         $view = $this->transactionView;
     } else {
         if ($this->getTransactions()) {
             $view = head($this->getTransactions())->getApplicationTransactionViewObject();
         } else {
             $view = new PhabricatorApplicationTransactionView();
         }
     }
     $view->setUser($this->getViewer())->setTransactions($this->getTransactions())->setIsPreview($this->isPreview);
     if ($this->isPreview) {
         $xactions = mpull($view->buildEvents(), 'render');
     } else {
         $xactions = mpull($view->buildEvents(), 'render', 'getTransactionPHID');
     }
     // Force whatever the underlying views built to render into HTML for
     // the Javascript.
     foreach ($xactions as $key => $xaction) {
         $xactions[$key] = hsprintf('%s', $xaction);
     }
     $content = array('xactions' => $xactions, 'spacer' => PHUITimelineView::renderSpacer());
     return $this->getProxy()->setContent($content);
 }

 /**
  * Bind data to the view.
  *
  * @param View $view
  *
  * @return void
  */
 public function compose(View $view)
 {
     $data = $view->getData();
     if (Auth::check()) {
         $notifications = Auth::user()->notifications()->with('user')->orderBy('created_at', 'desc')->take(15)->get();
         $view->with('notifications', $notifications);
         $unreadCount = Auth::user()->notifications()->wherePivot('read', false)->count();
         $view->with('newNotificationsCount', $unreadCount);
     }
     // Get object from which we can extract name to use as page title
     $currentGroup = head(array_only($data, ['group', 'folder', 'fakeGroup']));
     $view->with('currentGroup', $currentGroup);
     if (isset($currentGroup) && isset($currentGroup->name)) {
         $pageTitle = $currentGroup->name;
         // Homepage title shall always be Strimoid.pl
         if ($currentGroup->urlname == 'all' && !Setting::get('homepage_subscribed', false)) {
             $pageTitle = 'Strimoid';
         }
         if ($currentGroup->urlname == 'subscribed' && Setting::get('homepage_subscribed', false)) {
             $pageTitle = 'Strimoid';
         }
     } else {
         $pageTitle = 'Strimoid';
     }
     $view->with('pageTitle', $pageTitle);
     // Needed by top bar with groups
     $popularGroups = Cache::remember('popularGroups', 60, function () {
         return Group::orderBy('subscribers_count', 'desc', true)->take(30)->get(['id', 'name', 'urlname']);
     });
     $view->with('popularGroups', $popularGroups);
 }

 /**
  * Sort the middlewares by the given priority map.
  *
  * Each call to this method makes one discrete middleware movement if necessary.
  *
  * @param  array  $priorityMap
  * @param  array  $middlewares
  * @return array
  */
 protected function sortMiddleware($priorityMap, $middlewares)
 {
     $lastIndex = 0;
     foreach ($middlewares as $index => $middleware) {
         if (!is_string($middleware)) {
             continue;
         }
         $stripped = head(explode(':', $middleware));
         if (in_array($stripped, $priorityMap)) {
             $priorityIndex = array_search($stripped, $priorityMap);
             // This middleware is in the priority map. If we have encountered another middleware
             // that was also in the priority map and was at a lower priority than the current
             // middleware, we will move this middleware to be above the previous encounter.
             if (isset($lastPriorityIndex) && $priorityIndex < $lastPriorityIndex) {
                 return $this->sortMiddleware($priorityMap, array_values($this->moveMiddleware($middlewares, $index, $lastIndex)));
                 // This middleware is in the priority map; but, this is the first middleware we have
                 // encountered from the map thus far. We'll save its current index plus its index
                 // from the priority map so we can compare against them on the next iterations.
             } else {
                 $lastIndex = $index;
                 $lastPriorityIndex = $priorityIndex;
             }
         }
     }
     return array_values(array_unique($middlewares, SORT_REGULAR));
 }

 /**
  * It's magic!
  *
  * @param string $method
  * @param array  $arguments
  *
  * @throws \Exception
  *
  * @return array|string
  */
 public function __call(string $method, array $arguments)
 {
     if (in_array($httpMethod = strtoupper($method), $this->methodMap)) {
         return $this->request($httpMethod, head($arguments));
     }
     throw new \Exception('Method "' . $method . '" does not exist.');
 }

 protected function setCommonVariable()
 {
     // Achieve that segment
     $this->accessUrl = config('cmsharenjoy.access_url');
     // Get the action name
     $routeArray = Str::parseCallback(Route::currentRouteAction(), null);
     if (last($routeArray) != null) {
         // Remove 'controller' from the controller name.
         $controller = str_replace('Controller', '', class_basename(head($routeArray)));
         // Take out the method from the action.
         $action = str_replace(['get', 'post', 'patch', 'put', 'delete'], '', last($routeArray));
         // post, report
         $this->onController = strtolower($controller);
         session()->put('onController', $this->onController);
         view()->share('onController', $this->onController);
         // get-create, post-create
         $this->onMethod = Str::slug(Request::method() . '-' . $action);
         session()->put('onMethod', $this->onMethod);
         view()->share('onMethod', $this->onMethod);
         // create, update
         $this->onAction = strtolower($action);
         session()->put('onAction', $this->onAction);
         view()->share('onAction', $this->onAction);
     }
     // Brand name from setting
     $this->brandName = Setting::get('brand_name');
     // Share some variables to views
     view()->share('brandName', $this->brandName);
     view()->share('langLocales', config('cmsharenjoy.locales'));
     view()->share('activeLanguage', session('sharenjoy.backEndLanguage'));
     // Set the theme
     // $this->theme = Theme::uses('front');
     // Message
     view()->share('messages', Message::getMessageBag());
 }

 protected function buildBareRepository($callsign)
 {
     $existing_repository = id(new PhabricatorRepositoryQuery())->withCallsigns(array($callsign))->setViewer(PhabricatorUser::getOmnipotentUser())->executeOne();
     if ($existing_repository) {
         $existing_repository->delete();
     }
     $data_dir = dirname(__FILE__) . '/data/';
     $types = array('svn' => PhabricatorRepositoryType::REPOSITORY_TYPE_SVN, 'hg' => PhabricatorRepositoryType::REPOSITORY_TYPE_MERCURIAL, 'git' => PhabricatorRepositoryType::REPOSITORY_TYPE_GIT);
     $hits = array();
     foreach ($types as $type => $const) {
         $path = $data_dir . $callsign . '.' . $type . '.tgz';
         if (Filesystem::pathExists($path)) {
             $hits[$const] = $path;
         }
     }
     if (!$hits) {
         throw new Exception("No test data for callsign '{$callsign}'. Expected an archive " . "like '{$callsign}.git.tgz' in '{$data_dir}'.");
     }
     if (count($hits) > 1) {
         throw new Exception("Expected exactly one archive matching callsign '{$callsign}', " . "found too many: " . implode(', ', $hits));
     }
     $path = head($hits);
     $vcs_type = head_key($hits);
     $dir = PhutilDirectoryFixture::newFromArchive($path);
     $local = new TempFile('.ignore');
     $user = $this->generateNewTestUser();
     $repo = PhabricatorRepository::initializeNewRepository($user)->setCallsign($callsign)->setName(pht('Test Repo "%s"', $callsign))->setVersionControlSystem($vcs_type)->setDetail('local-path', dirname($local) . '/' . $callsign)->setDetail('remote-uri', 'file://' . $dir->getPath() . '/');
     $this->didConstructRepository($repo);
     $repo->save();
     $repo->makeEphemeral();
     // Keep the disk resources around until we exit.
     $this->dirs[] = $dir;
     $this->dirs[] = $local;
     return $repo;
 }