maintainer = 'Pierre Mazière'; $this->name = 'Elsevier journals recent articles'; $this->uri = 'http://www.journals.elsevier.com'; $this->description = 'Returns the recent articles published in Elsevier journals'; $this->parameters[] = array( 'j'=>array( 'name'=>'Journal name', 'required'=>true, 'exampleValue'=>'academic-pediactrics', 'title'=>'Insert html-part of your journal' ) ); } // Extracts the list of names from an article as string private function ExtractArticleName ($article){ $names = $article->find('small', 0); if($names) return trim($names->plaintext); return ''; } // Extracts the timestamp from an article private function ExtractArticleTimestamp ($article){ $time = $article->find('.article-info', 0); if($time){ $timestring = trim($time->plaintext); /* The format depends on the age of an article: - Available online 29 July 2016 - July 2016 - May–June 2016 */ if(preg_match('/\S*(\d+\s\S+\s\d{4})/ims', $timestring, $matches)){ return strtotime($matches[0]); } elseif (preg_match('/[A-Za-z]+\-([A-Za-z]+\s\d{4})/ims', $timestring, $matches)){ return strtotime($matches[0]); } elseif (preg_match('/([A-Za-z]+\s\d{4})/ims', $timestring, $matches)){ return strtotime($matches[0]); } else { return 0; } } return 0; } // Extracts the content from an article private function ExtractArticleContent ($article){ $content = $article->find('.article-content', 0); if($content){ return trim($content->plaintext); } return ''; } public function collectData(){ $param=$this->parameters[$this->queriedContext]; $uri = 'http://www.journals.elsevier.com/' . $param['j']['value'] . '/recent-articles/'; $html = $this->getSimpleHTMLDOM($uri) or $this->returnServerError('No results for Elsevier journal '.$param['j']['value']); foreach($html->find('.pod-listing') as $article){ $item = array(); $item['uri'] = $article->find('.pod-listing-header>a',0)->getAttribute('href').'?np=y'; $item['title'] = $article->find('.pod-listing-header>a',0)->plaintext; $item['author'] = $this->ExtractArticleName($article); $item['timestamp'] = $this->ExtractArticleTimestamp($article); $item['content'] = $this->ExtractArticleContent($article); $this->items[] = $item; } } public function getCacheDuration(){ return 43200; // 12h } } ?>