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->update = '2016-08-09'; $this->parameters[] = '[ { "name" : "Journal name", "identifier" : "j", "required" : "true", "exampleValue" : "academic-pediatrics", "title" : "Insert html-part of your journal" } ]'; } // Extracts the list of names from an article as string private function ExtractArticleName ($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]+\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]); } 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(array $param){ $uri = 'http://www.journals.elsevier.com/' . $param['j'] . '/recent-articles/'; $html = file_get_html($uri) or $this->returnError('No results for Elsevier journal '.$param['j'], 404); foreach($html->find('.pod-listing') as $article){ $item = new \Item(); $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 } } ?>