public function innerHtml()
{
if (!$this->hasChildren()) {
// no children
return '';
}
if (!is_null($this->innerHtml)) {
// we already know the result.
return $this->innerHtml;
}
$child = $this->firstChild();
$string = '';
// continue to loop until we are out of children
while (!is_null($child)) {
if ($child instanceof TextNode) {
$string .= $child->text();
} elseif ($child instanceof HtmlNode) {
$string .= $child->outerHtml();
} else {
throw new UnknownChildTypeException('Unknown child type "' . get_class($child) . '" found in node');
}
try {
$child = $this->nextChild($child->id());
} catch (ChildNotFoundException $e) {
// no more children
$child = null;
}
}
// remember the results
$this->innerHtml = $string;
return $string;
} /**
* @expectedException PHPHtmlParser\Exceptions\UnknownChildTypeException
*/
public function testInnerHtmlUnkownChild()
{
$div = new Tag('div');
$div->setAttributes(['class' => ['value' => 'all', 'doubleQuote' => true]]);
$a = new Tag('a');
$a->setAttributes(['href' => ['value' => 'http://google.com', 'doubleQuote' => false]]);
$br = new Tag('br');
$br->selfClosing();
$parent = new HtmlNode($div);
$childa = new HtmlNode($a);
$childbr = new MockNode($br);
$parent->addChild($childa);
$parent->addChild($childbr);
$childa->addChild(new TextNode('link'));
$inner = $parent->innerHtml();
$this->assertEquals($inner, $parent->innerHtml());
}