original_string: public function get_image_url()
  	{
  		if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'image'))
  		{
  			return $this->sanitize($return[0]['attribs']['']['href'], SIMPLEPIE_CONSTRUCT_IRI);
  		}
  		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'logo'))
  		{
  			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
  		}
  		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'icon'))
  		{
  			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
  		}
  		elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'url'))
  		{
  			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
  		}
  		elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'url'))
  		{
  			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
  		}
  		elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'url'))
  		{
  			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
  		}
  		else
  		{
  			return null;
  		}
  	}
code: public function get_image_url()
  	{
  		if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'image'))
  		{
  			return $this->sanitize($return[0]['attribs']['']['href'], SIMPLEPIE_CONSTRUCT_IRI);
  		}
  		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'logo'))
  		{
  			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
  		}
  		elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'icon'))
  		{
  			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
  		}
  		elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'url'))
  		{
  			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
  		}
  		elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'url'))
  		{
  			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
  		}
  		elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'url'))
  		{
  			return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
  		}
  		else
  		{
  			return null;
  		}
  	}
code_tokens: public function get_image_url ( ) { if ( $ return = $ this -> get_channel_tags ( SIMPLEPIE_NAMESPACE_ITUNES , 'image' ) ) { return $ this -> sanitize ( $ return [ 0 ] [ 'attribs' ] [ '' ] [ 'href' ] , SIMPLEPIE_CONSTRUCT_IRI ) ; } elseif ( $ return = $ this -> get_channel_tags ( SIMPLEPIE_NAMESPACE_ATOM_10 , 'logo' ) ) { return $ this -> sanitize ( $ return [ 0 ] [ 'data' ] , SIMPLEPIE_CONSTRUCT_IRI , $ this -> get_base ( $ return [ 0 ] ) ) ; } elseif ( $ return = $ this -> get_channel_tags ( SIMPLEPIE_NAMESPACE_ATOM_10 , 'icon' ) ) { return $ this -> sanitize ( $ return [ 0 ] [ 'data' ] , SIMPLEPIE_CONSTRUCT_IRI , $ this -> get_base ( $ return [ 0 ] ) ) ; } elseif ( $ return = $ this -> get_image_tags ( SIMPLEPIE_NAMESPACE_RSS_10 , 'url' ) ) { return $ this -> sanitize ( $ return [ 0 ] [ 'data' ] , SIMPLEPIE_CONSTRUCT_IRI , $ this -> get_base ( $ return [ 0 ] ) ) ; } elseif ( $ return = $ this -> get_image_tags ( SIMPLEPIE_NAMESPACE_RSS_090 , 'url' ) ) { return $ this -> sanitize ( $ return [ 0 ] [ 'data' ] , SIMPLEPIE_CONSTRUCT_IRI , $ this -> get_base ( $ return [ 0 ] ) ) ; } elseif ( $ return = $ this -> get_image_tags ( SIMPLEPIE_NAMESPACE_RSS_20 , 'url' ) ) { return $ this -> sanitize ( $ return [ 0 ] [ 'data' ] , SIMPLEPIE_CONSTRUCT_IRI , $ this -> get_base ( $ return [ 0 ] ) ) ; } else { return null ; } }
docstring: Get the feed logo's URL
  
  RSS 0.9.0, 2.0, Atom 1.0, and feeds with iTunes RSS tags are allowed to
  have a "feed logo" URL. This points directly to the image itself.
  
  Uses `<itunes:image>`, `<atom:logo>`, `<atom:icon>`,
  `<image><title>` or `<image><dc:title>`
  
  @return string|null
docstring_tokens: Get the feed logo s URL