function __init()
 {
     parent::__init();
     if (isset($this->source)) {
         $this->xpath = new DOMXPath($this->source);
     }
 }
 function __init()
 {
     parent::__init();
     $this->ns['sioc'] = 'http://rdfs.org/sioc/ns#';
     //make sure sioc is in the available namespace prefixes
     if (!$this->revProp) {
         //if not passed a config revProp, fill in default of sioc:links_to
         $this->revProp = $this->expandPName('sioc:links_to');
     }
     if (isset($this->a['parentURI'])) {
         $this->revURI = $this->a['parentURI'];
     }
 }
 function __init()
 {
     parent::__init();
     $this->xpath = $this->a['xpath'];
 }
 function __init()
 {
     parent::__init();
     $this->ns['test'] = 'http://example.org/testNS/';
 }