/**
* find dom node by css selector
*
* Paperg - allow us to specify that we want case insensitive testing of the value of the selector.
*
* @param $selector
* @param null $idx
*
* @return array|null|\voku\helper\SimpleHtmlDomNode[]|\voku\helper\SimpleHtmlDomNode
*/
public function find($selector, $idx = null)
{
$find = $this->root->find($selector, $idx);
if ($find === null) {
return new SimpleHtmlDomNodeBlank();
} else {
return $find;
}
}
protected function parseCharset()
{
$charset = null;
if (function_exists('get_last_retrieve_url_contents_content_type')) {
$contentTypeHeader = get_last_retrieve_url_contents_content_type();
$success = preg_match('/charset=(.+)/', $contentTypeHeader, $matches);
if ($success) {
$charset = $matches[1];
}
}
if (empty($charset)) {
$el = $this->root->find('meta[http-equiv=Content-Type]', 0);
if (!empty($el)) {
$fullValue = $el->getAttribute("content");
if (!empty($fullValue)) {
$success = preg_match('/charset=(.+)/', $fullValue, $matches);
if ($success) {
$charset = $matches[1];
} else {
// If there is a meta tag, and they don't specify the character set, research says that it's typically ISO-8859-1
$charset = 'ISO-8859-1';
}
}
}
}
// If we couldn't find a charset above, then lets try to detect one based on the text we got...
if (empty($charset)) {
// Have php try to detect the encoding from the text given to us.
$charset = mb_detect_encoding($this->root->text() . "ascii", $encoding_list = array("UTF-8", "CP1252"));
// and if this doesn't work... then we need to just wrongheadedly assume it's UTF-8 so that we can move on - cause this will usually give us most of what we need...
if ($charset === false) {
$charset = 'UTF-8';
}
}
// Since CP1252 is a superset, if we get one of it's subsets, we want it instead.
if (strtolower($charset) == strtolower('ISO-8859-1') || strtolower($charset) == strtolower('Latin1') || strtolower($charset) == strtolower('Latin-1')) {
$charset = 'CP1252';
}
return $this->_charset = $charset;
}
/**
* dump html dom tree
*
* @param SimpleHtmlDomNode $node
*/
public static function dump_html_tree($node)
{
$node->dump($node);
}
/**
* append child
*
* @param SimpleHtmlDomNode $node
*
* @return mixed
*/
public function appendChild($node)
{
$node->parent($this);
return $node;
}
