fetch() public method

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
return array | null The element array or null if invalid position
IIterator Interface Documentation
示例#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)];
 }
示例#2
0
文件： Set.php 项目： timetoogo/pinq 
 public function __construct(IIterator $values = null)
 {
     if ($values !== null) {
         $values->rewind();
         while ($element = $values->fetch()) {
             $this->addRef($element[1]);
         }
     }
 }