fetch() публичный Метод

If the current position is valid, returns an array with index zero as the key and index one as the value and advances the iterator to the next position or returns null if the current position is invalid.
public fetch ( ) : array | null
Результат array | null The element array or null if invalid position
Документация по интерфейсу IIterator
Пример #1
0
 protected function doFetch()
 {
     while ((list($innerKey, $innerValue) = $this->innerValuesIterator->fetch()) === null) {
         if ((list($this->outerKey, $this->outerValue) = $this->outerIterator->fetch()) === null) {
             return null;
         }
         $this->innerValuesIterator = $this->getInnerValuesIterator($this->outerKey, $this->outerValue);
         $this->innerValuesIterator->rewind();
     }
     $projectionFunction = $this->projectionFunction;
     return [$this->count++, $projectionFunction($this->outerValue, $innerValue, $this->outerKey, $innerKey)];
 }
Пример #2
0
 public function __construct(IIterator $values = null)
 {
     if ($values !== null) {
         $values->rewind();
         while ($element = $values->fetch()) {
             $this->addRef($element[1]);
         }
     }
 }