PHP ArrayObject::offsetExists方法代碼示例

 /**
  * Returns required option value
  *
  * @param string $optionName
  * @return mixed
  */
 public function getOption($optionName)
 {
     if ($this->_options instanceof ArrayObject && $this->_options->offsetExists($optionName)) {
         return $this->_options->offsetGet($optionName);
     }
     return NULL;
 }

 /**
  * Test if has datas with $uid key
  * @param mixed $uid
  * @return boolean
  */
 public function has($uid)
 {
     if (null === $this->session) {
         return false;
     }
     return $this->session->offsetExists($uid);
 }

 /**
  * @return mixed
  * @param string $name
  * @param mixed $defaultValue
  */
 public function getArgument($name, $defaultValue = null)
 {
     if ($this->arguments->offsetExists($name)) {
         return $this->arguments->offsetGet($name);
     }
     return $defaultValue;
 }

 public function load($name, $throw_exception = true)
 {
     if ($throw_exception && !$this->arrayObject->offsetExists($name)) {
         throw new PluginManagerException(sprintf("Plugin %s not found failure", $name));
     }
     return $this;
 }

 public function getParam($name)
 {
     if (!$this->storage->offsetExists($name)) {
         return null;
     }
     return $this->storage->offsetGet($name);
 }

 /**
  * Obtem o caminho de um diretorio
  * @param string $index
  * @return boolean
  */
 public function getDirectory($index)
 {
     if ($this->paths->offsetExists($index)) {
         return $this->paths->offsetGet($index);
     }
     return false;
 }

 /**
  * Obtem um param enviado via Request Http
  * @param int|string $index
  * @return mixed|boolean
  */
 public function getParam($index)
 {
     if ($this->params->offsetExists($index)) {
         return $this->params->offsetGet($index);
     }
     return false;
 }

 /**
  * Get component data
  *
  * @param string $name
  * @return array
  * @throws LocalizedException
  */
 public function getComponentData($name)
 {
     if (!$this->componentData->offsetExists($name)) {
         throw new LocalizedException(new Phrase('The requested component ("' . $name . '") is not found. ' . 'Before using, you must add the implementation.'));
     }
     return (array) $this->componentData->offsetGet($name);
 }

 function testArrayObject()
 {
     $obj = new ArrayObject();
     $obj[2] = "something";
     $this->assertTrue($obj->offsetExists(2));
     $this->assertFalse($obj->offsetExists('2'));
     $this->assertFalse($obj->offsetExists(1));
 }

 /**
  * returns field descriptor
  *
  * @throws \VisioCrudModeler\Exception\FieldNotFound
  * @return DbFieldDescriptor
  */
 public function getFieldDescriptor($fieldName)
 {
     if (!array_key_exists($fieldName, $this->definition['fields'])) {
         throw new FieldNotFound("field '" . $fieldName . "' not found in '" . $this->getName() . "'");
     }
     if (!$this->fieldDescriptors->offsetExists($fieldName)) {
         $this->fieldDescriptors->offsetSet($fieldName, new WebFieldDescriptor($this, $this->definition['fields'][$fieldName]));
     }
     return $this->fieldDescriptors->offsetGet($fieldName);
 }

 /**
  * Check the object cache see if the data has already been retrieved
  * 
  * This cache is only persisted throughout a request 
  *
  * @param KCommandContext $context
  *
  * @return void
  */
 protected function _beforeRepositoryFetch(KCommandContext $context)
 {
     if ($this->_enable) {
         $key = $this->_getCacheKey($context->query);
         if (self::$_cache->offsetExists($key)) {
             $context->data = self::$_cache->offsetGet($key);
             return false;
         }
     }
 }

 /**
  * @param string $index
  * @param null|string $defaultValue
  * @param bool   $filtered If you trust foreign input introduced to your PHP code - set to FALSE!
  *
  * @return string
  */
 public function get($index, $defaultValue = null, $filtered = true)
 {
     if ($this->data->offsetExists($index)) {
         if ($filtered === true) {
             // pretty high-level filtering here...
             return self::filter($this->data->offsetGet($index));
         }
         return $this->data->offsetGet($index);
     }
     return $defaultValue;
 }

 /**
  * Get Map to business or dao
  * @param string $index
  * @param array $map
  */
 public function getMapTo($index, $to)
 {
     if ($this->maps->offsetExists($index)) {
         $map = $this->maps->offsetGet($index);
         if (in_array($to, array('db', 'object'))) {
             return $map[$to];
         }
         return FALSE;
     } else {
         return FALSE;
     }
 }

 /**
  * Process the registration of one service.
  *
  * @param string $className The class name of the service
  *
  * @throws \Subbly\Api\Exception If class name does not exists
  * @throws \Subbly\Api\Exception If the class does not implement \Subbly\Api\Service\Service
  * @throws \Subbly\Api\Exception If service name is already register
  */
 public function registerService($className)
 {
     if (!class_exists($className)) {
         throw new Exception(sprintf(Exception::SERVICE_CLASS_NOT_EXISTS, $className));
     }
     $service = new $className($this);
     if (!$service instanceof Service) {
         throw new Exception(sprintf(Exception::NOT_A_SERVICE, $className));
     }
     if ($this->services->offsetExists($service->name())) {
         throw new Exception(sprintf(Exception::SERVICE_ALREADY_EXISTS, $service->name()));
     }
     $this->services->offsetSet($service->name(), $service);
 }

 /**
  * Get an item from an array using "dot" notation.
  *
  * @param string|integer $index The index or identifier.
  * @param mixed          $default
  *
  * @return mixed|null
  */
 public static function get($index, $default = null)
 {
     if (self::$battery->offsetExists($index)) {
         return self::$battery->offsetGet($index);
     }
     $array = self::$battery->getArrayCopy();
     foreach ((array) explode('.', $index) as $segment) {
         if (!is_array($array) || !array_key_exists($segment, $array)) {
             return $default;
         }
         $array = $array[$segment];
     }
     return $array;
 }