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71 lines
1.0 KiB
PHP
71 lines
1.0 KiB
PHP
<?php
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class CachingIterator
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{
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protected $it;
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protected $current;
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protected $key;
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protected $more;
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protected $strvalue;
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function __construct(Iterator $it)
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{
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$this->it = $it;
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}
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function rewind()
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{
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$this->it->rewind();
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$this->next();
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}
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function next()
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{
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if ($this->more = $this->it->hasMore()) {
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$this->current = $this->it->current();
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$this->key = $this->it->key();
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if (is_object($this->current)) {
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$this->strvalue = $this->current->__toString();
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} else {
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$this->strvalue = (string)$this->current;
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}
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} else {
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$this->current = NULL;
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$this->key = NULL;
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$this->strvalue = '';
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}
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$this->it->next();
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}
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function hasMore()
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{
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return $this->more;
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}
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function hasNext()
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{
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return $this->it->hasMore();
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}
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function current()
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{
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return $this->current;
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}
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function key()
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{
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return $this->key;
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}
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function __call($func, $params)
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{
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return call_user_func_array(array($this->it, $func), $params);
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}
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function __toString()
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{
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return $this->strvalue;
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}
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}
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?>
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