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<?php |
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/** |
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* \AppserverIo\Server\Contexts\RequestContext |
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* |
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* NOTICE OF LICENSE |
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* |
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* This source file is subject to the Open Software License (OSL 3.0) |
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* that is available through the world-wide-web at this URL: |
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* http://opensource.org/licenses/osl-3.0.php |
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* |
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* PHP version 5 |
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* |
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* @author Johann Zelger <[email protected]> |
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* @copyright 2015 TechDivision GmbH <[email protected]> |
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* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0) |
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* @link https://github.com/appserver-io/server |
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* @link http://www.appserver.io |
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*/ |
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namespace AppserverIo\Server\Contexts; |
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use AppserverIo\Server\Dictionaries\EnvVars; |
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use AppserverIo\Server\Dictionaries\ServerVars; |
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use AppserverIo\Server\Interfaces\RequestContextInterface; |
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use AppserverIo\Server\Interfaces\ServerConfigurationInterface; |
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use AppserverIo\Server\Traits\EnvVarsArrayTrait; |
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use AppserverIo\Server\Traits\ModuleVarsArrayTrait; |
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use AppserverIo\Server\Traits\ServerVarsArrayTrait; |
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use AppserverIo\Server\Exceptions\ServerException; |
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/** |
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* Class ServerContext |
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* |
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* @author Johann Zelger <[email protected]> |
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* @copyright 2015 TechDivision GmbH <[email protected]> |
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* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0) |
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* @link https://github.com/appserver-io/server |
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* @link http://www.appserver.io |
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*/ |
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class RequestContext implements RequestContextInterface |
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{ |
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// use traits for server-, env- and module var functionality |
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use ServerVarsArrayTrait, ModuleVarsArrayTrait, EnvVarsArrayTrait; |
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/** |
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* Defines the handler to use as default |
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* |
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* @var string |
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*/ |
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const REQUEST_HANDLER_DEFAULT = 'core'; |
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/** |
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* This member will hold the server variables which different modules can set/get in order to change the processing |
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* of the incoming request. |
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* This will also contain server variables as one might suspect in $_SERVER |
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* |
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* @var array $serverVars |
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*/ |
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protected $serverVars; |
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/** |
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* This member will hold the module variables which different modules can set/get to communicate with each |
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* other without knowing each other. |
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* |
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* @var array $moduleVars |
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*/ |
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protected $moduleVars; |
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/** |
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* This member will hold the environment (env) variables which different modules can set/get to provide |
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* the context similar to $_ENV in the plain php world |
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* |
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* @var array $envVars |
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*/ |
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protected $envVars; |
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/** |
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* Constructs the request context |
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*/ |
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public function __construct() |
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{ |
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// init data holders as hash map objects ... user objects traits for that |
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// $this->serverVars = new HashMap(); |
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// $this->envVars = new HashMap(); |
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// $this->moduleVars = new HashMap(); |
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// you can use stackable trait when doing this to be synchronised with these hashtables |
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// $this->serverVars = new \Stackable(); |
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// $this->envVars = new \Stackable(); |
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// $this->moduleVars = new \Stackable(); |
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// or you just use normal internal arrays |
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$this->serverVars = array(); |
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$this->envVars = array(); |
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$this->moduleVars = array(); |
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} |
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/** |
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* Initialises the request context by given server config |
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* |
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* @param \AppserverIo\Server\Interfaces\ServerConfigurationInterface $serverConfig The servers config |
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* |
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* @return void |
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*/ |
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public function init(ServerConfigurationInterface $serverConfig) |
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{ |
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// set server context ref |
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$this->serverConfig = $serverConfig; |
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// init all vars |
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$this->initVars(); |
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} |
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/** |
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* Return's the server config instance |
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* |
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* @return \AppserverIo\Server\Interfaces\ServerConfigurationInterface |
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*/ |
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public function getServerConfig() |
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{ |
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return $this->serverConfig; |
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} |
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/** |
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* Resets all var used in server context |
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* |
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* @return void |
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*/ |
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public function initVars() |
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{ |
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$this->initServerVars(); |
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$this->initModuleVars(); |
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$this->initEnvVars(); |
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} |
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/** |
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* init's module vars |
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* |
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* @return void |
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*/ |
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public function initModuleVars() |
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{ |
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// init module vars |
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$this->clearModuleVars(); |
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} |
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/** |
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* init's env vars |
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* |
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* @return void |
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*/ |
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public function initEnvVars() |
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{ |
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// init env vars array |
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$this->clearEnvVars(); |
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$this->setEnvVar(EnvVars::LOGGER_SYSTEM, $this->getServerConfig()->getLoggerName()); |
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} |
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/** |
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* init's server vars |
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* |
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* @return void |
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*/ |
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public function initServerVars() |
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{ |
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// get local refs |
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$serverConfig = $this->getServerConfig(); |
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// clear server var storage |
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$this->clearServerVars(); |
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// set server vars to local var to shorter usage |
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$serverSoftware = $serverConfig->getSoftware() . ' (PHP ' . PHP_VERSION . ')'; |
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$serverAddress = $serverConfig->getAddress(); |
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$serverPort = $serverConfig->getPort(); |
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// set document root |
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$documentRoot = $serverConfig->getDocumentRoot(); |
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// check if relative path is given and make is absolute by using getcwd() as prefix |
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if (!preg_match("/^([a-zA-Z]:|\/)/", $documentRoot)) { |
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$documentRoot = getcwd() . DIRECTORY_SEPARATOR . $documentRoot; |
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} |
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// check if document root exists on file system |
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if (!is_dir($documentRoot)) { |
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throw new ServerException( |
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sprintf( |
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"Document root '%s' does not exist for '%s' listing on '%s:%s'", |
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$documentRoot, |
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$serverConfig->getName(), |
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$serverAddress, |
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$serverPort |
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) |
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); |
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} |
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// build initial server vars |
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$this->setServerVar(ServerVars::DOCUMENT_ROOT, $documentRoot); |
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$this->setServerVar(ServerVars::SERVER_ADMIN, $serverConfig->getAdmin()); |
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$this->setServerVar(ServerVars::SERVER_NAME, $serverAddress); |
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$this->setServerVar(ServerVars::SERVER_ADDR, $serverAddress); |
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$this->setServerVar(ServerVars::SERVER_PORT, $serverPort); |
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$this->setServerVar(ServerVars::GATEWAY_INTERFACE, "PHP/" . PHP_VERSION); |
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$this->setServerVar(ServerVars::SERVER_SOFTWARE, $serverSoftware); |
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$this->setServerVar( |
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ServerVars::SERVER_SIGNATURE, |
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"<address>$serverSoftware Server at $serverAddress Port $serverPort</address>\r\n" |
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); |
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$this->setServerVar(ServerVars::SERVER_HANDLER, RequestContext::REQUEST_HANDLER_DEFAULT); |
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$this->setServerVar(ServerVars::SERVER_ERRORS_PAGE_TEMPLATE_PATH, $serverConfig->getErrorsPageTemplatePath()); |
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$this->setServerVar(ServerVars::SERVER_WELCOME_PAGE_TEMPLATE_PATH, $serverConfig->getWelcomePageTemplatePath()); |
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$this->setServerVar(ServerVars::SERVER_AUTO_INDEX_TEMPLATE_PATH, $serverConfig->getAutoIndexTemplatePath()); |
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$this->setServerVar(ServerVars::SERVER_AUTO_INDEX, $serverConfig->getAutoIndex()); |
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$this->setServerVar(ServerVars::HTTPS, $serverConfig->getTransport()); |
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$this->setServerVar(ServerVars::PATH, getenv('PATH')); |
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} |
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} |
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In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: