47 lines
No EOL
954 B
PHP
47 lines
No EOL
954 B
PHP
<?php
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class NodeIterator {
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/*---------------------------
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The NodeIterator can be used just like a foreach() loop to iterate
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arrays.
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Sample:
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$iter = new NodeIterator(array());
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while($iter->hasNext()) {
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$curr = $iter->getNext();
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// ...
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}
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---------------------------*/
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private $node;
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#private $curr;
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function NodeIterator($node) {
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$this->node = $node;
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#$this->curr = 0;
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}
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function hasNext() {
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#$tmp = array_keys($this->nodes);
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#return isset($this->nodes[$tmp[$this->curr]]);
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if($this->node == null) {
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#echo "empty";
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return false;
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}
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#if($this->node->getChild() == null) {
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# return false;
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#}
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#echo "true";
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return true;
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}
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function getNext() {
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#$tmp = array_keys($this->nodes);
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#return $this->nodes[$tmp[$this->curr++]];
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$n = $this->node;
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$this->node = $this->node->getChild();
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return $n->data;
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}
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}
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?>
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