Online PHP editor | refs for FtFt6

<?php class MyElement extends DOMElement { public $id; public static $next = 0; function init() { $this->id = MyElement::$next++; echo "Initializing DOMElement #" . $this->id . ": " . $this->tagName . "\n"; return $this; } function __destruct() { echo "Destructing DOMElement #" . $this->id . ": " . $this->tagName . "\n"; } function info() { echo "Querying DOMElement #" . $this->id . ": " . $this->tagName . "\n"; } } function foo() { echo "Enter foo()\n"; $dom = new DOMDocument; $dom->registerNodeClass('DOMElement', 'MyElement'); $child = $dom->createElement('foo')->init(); $grandchild = $dom->createElement('bar')->init(); $greatgrandchild = $dom->createElement('fiz')->init(); $grandchild->appendChild($greatgrandchild); $child->appendChild($grandchild); $dom->appendChild($child); echo "Leave foo()\n"; return $grandchild; } function bar() { echo "Enter bar()\n"; $g = foo(); $fooList = $g->getElementsByTagName('fiz'); foreach ($fooList as $foo) { $foo->info(); var_dump($foo->getNodePath()); } echo "Leave bar()\n"; } echo "Enter main()\n"; bar(); echo "Leave main()\n";