registerNodeClass('DOMElement', 'JSLikeHTMLElement');
* $doc->loadHTML('');
* $elem = $doc->getElementsByTagName('div')->item(0);
*
* // print innerHTML
* echo $elem->innerHTML; // prints 'Para 1
Para 2
'
* echo "\n\n";
*
* // set innerHTML
* $elem->innerHTML = 'FiveFilters.org';
* echo $elem->innerHTML; // prints 'FiveFilters.org'
* echo "\n\n";
*
* // print document (with our changes)
* echo $doc->saveXML();
*
* @author Keyvan Minoukadeh - http://www.keyvan.net - keyvan@keyvan.net
*
* @see http://fivefilters.org (the project this was written for)
*/
class JSLikeHTMLElement extends \DOMElement
{
/**
* Used for setting innerHTML like it's done in JavaScript:.
*
* ```php
* $div->innerHTML = 'Chapter 2
The story begins...
';
* ```
*/
public function __set($name, $value)
{
if ('innerHTML' !== $name) {
$trace = debug_backtrace();
trigger_error('Undefined property via __set(): ' . $name . ' in ' . $trace[0]['file'] . ' on line ' . $trace[0]['line'], \E_USER_NOTICE);
return;
}
// first, empty the element
if (isset($this->childNodes)) {
for ($x = $this->childNodes->length - 1; $x >= 0; --$x) {
$this->removeChild($this->childNodes->item($x));
}
}
// $value holds our new inner HTML
$value = trim($value);
if (empty($value)) {
return;
}
// ensure bad entity won't generate warning
$previousError = libxml_use_internal_errors(true);
$f = $this->ownerDocument->createDocumentFragment();
// appendXML() expects well-formed markup (XHTML)
$result = $f->appendXML($value);
if ($result) {
if ($f->hasChildNodes()) {
$this->appendChild($f);
}
} else {
// $value is probably ill-formed
$f = new \DOMDocument();
// Using will generate a warning, but so will bad HTML
// (and by this point, bad HTML is what we've got).
// We use it (and suppress the warning) because an HTML fragment will
// be wrapped around tags which we don't really want to keep.
// Note: despite the warning, if loadHTML succeeds it will return true.
$result = $f->loadHTML('' . $value . '');
if ($result) {
$import = $f->getElementsByTagName('htmlfragment')->item(0);
foreach ($import->childNodes as $child) {
$importedNode = $this->ownerDocument->importNode($child, true);
$this->appendChild($importedNode);
}
}
}
libxml_clear_errors();
libxml_use_internal_errors($previousError);
}
/**
* Used for getting innerHTML like it's done in JavaScript:.
*
* ```php
* $string = $div->innerHTML;
* ```
*/
public function __get($name)
{
if ('innerHTML' === $name) {
$inner = '';
if (isset($this->childNodes)) {
foreach ($this->childNodes as $child) {
$inner .= $this->ownerDocument->saveXML($child);
}
}
return $inner;
}
$trace = debug_backtrace();
trigger_error('Undefined property via __get(): ' . $name . ' in ' . $trace[0]['file'] . ' on line ' . $trace[0]['line'], \E_USER_NOTICE);
}
public function __toString()
{
return '[' . $this->tagName . ']';
}
public function getInnerHtml()
{
return $this->__get('innerHTML');
}
public function setInnerHtml($value)
{
return $this->__set('innerHTML', $value);
}
}