public function rewind()
{
parent::rewind();
if ($this->valid()) {
$this->currentResult = $this->handleItem($this->current());
}
if ($this->hasNext()) {
$this->nextResult = $this->handleItem($this->getInnerIterator()->current());
}
}
/** @test */
public function testMainFunctionality()
{
$count = 0;
$it = new CachingIterator(new MapIterator(new ArrayIterator(range(0, 10)), function ($i) use(&$count) {
$count += 1;
return $i;
}));
$it->rewind();
$this->assertEquals(0, $count);
$it->valid();
$this->assertEquals(0, $it->current());
$it->valid();
$it->next();
$this->assertEquals(1, $it->current());
$this->assertEquals(1, $it->current());
$this->assertEquals(1, $it->current());
$it->valid();
$it->next();
$this->assertEquals(2, $it->current());
$this->assertEquals(3, $count);
}
/**
* Rewinds the Iterator.
* @return void
*/
public function rewind()
{
parent::rewind();
$this->counter = parent::valid() ? 1 : 0;
}
$it[3] = 'bar'; $it['baz'] = '25'; var_dump($it[2]); var_dump($it[3]); var_dump($it['baz']); unset($it[0]); unset($it[2]); unset($it['baz']); var_dump(isset($it[0])); // unset var_dump(isset($it[1])); // still present var_dump(isset($it[2])); // unset var_dump(isset($it[3])); // still present var_dump(isset($it['baz'])); echo "===REWIND===\n"; $it->rewind(); // cleans and reads first element var_dump(isset($it[0])); // pre-fetched var_dump(isset($it[1])); // deleted var_dump(isset($it[2])); // unset var_dump(isset($it[3])); // deleted ?> ===DONE===
<?php
$data = array('Mela', 'Pera', 'Kiwi', 'Banana', 'Pompelmo');
$it = new ArrayIterator($data);
$iterator = new CachingIterator($it);
for ($iterator->rewind(); $iterator->valid(); $iterator->next()) {
echo $iterator, PHP_EOL;
}
public function rewind()
{
$this->isCurrentChildrenCacheValid = false;
return parent::rewind();
}
next(){parent::next();if(parent::valid()){$this->counter++;}}function
rewind(){parent::rewind();$this->counter=parent::valid()?1:0;}function
function rewind()
{
$this->hasChildren = false;
$this->getChildren = NULL;
parent::rewind();
}
<?php
$a = array("some", "blah");
$i = new ArrayIterator($a);
$ci = new CachingIterator($i);
$ci->rewind();
?>
===DONE===
