L'interface <classname>SeekableIterator</classname>
SeekableIterator
&reftitle.intro;
L'itérateur SeekableIterator.
&reftitle.interfacesynopsis;
SeekableIterator
SeekableIterator
extends
Iterator
&Methods;
&InheritedMethods;
Utilisation simple
Cet exemple montre comment crée une classe
SeekableIterator personnalisée,
qui gère une position invalide.
array[$position])) {
throw new OutOfBoundsException("position invalide ($position)");
}
$this->position = $position;
}
/* Méthodes requises par l'interface Iterator */
public function rewind() {
$this->position = 0;
}
public function current() {
return $this->array[$this->position];
}
public function key() {
return $this->position;
}
public function next() {
++$this->position;
}
public function valid() {
return isset($this->array[$this->position]);
}
}
try {
$it = new MySeekableIterator;
echo $it->current(), "\n";
$it->seek(2);
echo $it->current(), "\n";
$it->seek(1);
echo $it->current(), "\n";
$it->seek(10);
} catch (OutOfBoundsException $e) {
echo $e->getMessage();
}
?>
]]>
&example.outputs.similar;
&reference.spl.entities.seekableiterator;