Created
April 27, 2011 23:56
-
-
Save j0shua/945507 to your computer and use it in GitHub Desktop.
JSLikeHTMLElement for php Readability port from http://www.keyvan.net/2010/08/php-readability/
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <?php | |
| /** | |
| * JavaScript-like HTML DOM Element | |
| * | |
| * This class extends PHP's DOMElement to allow | |
| * users to get and set the innerHTML property of | |
| * HTML elements in the same way it's done in | |
| * JavaScript. | |
| * | |
| * Example usage: | |
| * @code | |
| * require_once 'JSLikeHTMLElement.php'; | |
| * header('Content-Type: text/plain'); | |
| * $doc = new DOMDocument(); | |
| * $doc->registerNodeClass('DOMElement', 'JSLikeHTMLElement'); | |
| * $doc->loadHTML('<div><p>Para 1</p><p>Para 2</p></div>'); | |
| * $elem = $doc->getElementsByTagName('div')->item(0); | |
| * | |
| * // print innerHTML | |
| * echo $elem->innerHTML; // prints '<p>Para 1</p><p>Para 2</p>' | |
| * echo "\n\n"; | |
| * | |
| * // set innerHTML | |
| * $elem->innerHTML = '<a href="http://fivefilters.org">FiveFilters.org</a>'; | |
| * echo $elem->innerHTML; // prints '<a href="http://fivefilters.org">FiveFilters.org</a>' | |
| * echo "\n\n"; | |
| * | |
| * // print document (with our changes) | |
| * echo $doc->saveXML(); | |
| * @endcode | |
| * | |
| * @author Keyvan Minoukadeh - http://www.keyvan.net - [email protected] | |
| * @see http://fivefilters.org (the project this was written for) | |
| */ | |
| class JSLikeHTMLElement extends DOMElement | |
| { | |
| /** | |
| * Used for setting innerHTML like it's done in JavaScript: | |
| * @code | |
| * $div->innerHTML = '<h2>Chapter 2</h2><p>The story begins...</p>'; | |
| * @endcode | |
| */ | |
| public function __set($name, $value) { | |
| if ($name == 'innerHTML') { | |
| // first, empty the element | |
| for ($x=$this->childNodes->length-1; $x>=0; $x--) { | |
| $this->removeChild($this->childNodes->item($x)); | |
| } | |
| // $value holds our new inner HTML | |
| if ($value != '') { | |
| $f = $this->ownerDocument->createDocumentFragment(); | |
| // appendXML() expects well-formed markup (XHTML) | |
| $result = @$f->appendXML($value); // @ to suppress PHP warnings | |
| if ($result) { | |
| if ($f->hasChildNodes()) $this->appendChild($f); | |
| } else { | |
| // $value is probably ill-formed | |
| $f = new DOMDocument(); | |
| $value = mb_convert_encoding($value, 'HTML-ENTITIES', 'UTF-8'); | |
| // Using <htmlfragment> 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 <html><body> tags which we don't really want to keep. | |
| // Note: despite the warning, if loadHTML succeeds it will return true. | |
| $result = @$f->loadHTML('<htmlfragment>'.$value.'</htmlfragment>'); | |
| if ($result) { | |
| $import = $f->getElementsByTagName('htmlfragment')->item(0); | |
| foreach ($import->childNodes as $child) { | |
| $importedNode = $this->ownerDocument->importNode($child, true); | |
| $this->appendChild($importedNode); | |
| } | |
| } else { | |
| // oh well, we tried, we really did. :( | |
| // this element is now empty | |
| } | |
| } | |
| } | |
| } else { | |
| $trace = debug_backtrace(); | |
| trigger_error('Undefined property via __set(): '.$name.' in '.$trace[0]['file'].' on line '.$trace[0]['line'], E_USER_NOTICE); | |
| } | |
| } | |
| /** | |
| * Used for getting innerHTML like it's done in JavaScript: | |
| * @code | |
| * $string = $div->innerHTML; | |
| * @endcode | |
| */ | |
| public function __get($name) | |
| { | |
| if ($name == 'innerHTML') { | |
| $inner = ''; | |
| foreach ($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); | |
| return null; | |
| } | |
| public function __toString() | |
| { | |
| return '['.$this->tagName.']'; | |
| } | |
| } | |
| ?> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment