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这个功能强大的很，使用类似js的标签选择器识别DOM

The Ganon library gives access to HTML/XML documents in a very simple object oriented way. It eases modifying the DOM and makes finding elements easy with CSS3-like queries.

Ganon 使用示例：

// Parse the google code website into a DOM$html = file_get_dom('http://code.google.com/');

Access

Accessing elements is made easy through the CSS3-like selectors and the object model.

// Find all the paragraph tags with a class attribute and print the // value of the class attribute foreach($html('p[class]') as $element) {   echo $element->class, "
\n";  }  // Find the first div with ID "gc-header" and print the plain text of // the parent element (plain text means no HTML tags, just the text) echo $html('div#gc-header', 0)->parent->getPlainText();  // Find out how many tags there are which are "ns:tag" or "div", but not // "a" and do not have a class attribute echo count($html('(ns|tag, div + !a)[!class]');?>

Modification

Elements can be easily modified after you've found them.

// Find all paragraph tags which are nested inside a div tag, change     // their ID attribute and print the new HTML code     foreach($html('div p') as $index => $element) {       $element->id = "id$index";     }     echo $html;       // Center all the links inside a document which start with "http://"     // and print out the new HTML     foreach($html('a[href ^= "http://"]') as $element) {       $element->wrap('center');     }     echo $html;       // Find all odd indexed "td" elements and change the HTML to make them links     foreach($html('table td:odd') as $element) {       $element->setInnerText(''.$element->getPlainText().'');     }     echo $html;

 

Beautify

Ganon can also help you beautify your code and format it properly.

// Beautify the old HTML code and print out the new, formatted code     dom_format($html, array('attributes_case' => CASE_LOWER));     echo $html;