show only main table

index.php

@@ -25,4 +25,13 @@ $response = $client->request('POST', 'https://wprodl.uqac.ca/dossier_etudiant/gr
         'session' => getenv('PERIOD')
     ]
 ]);
-echo (string)$response->getBody();
+
+$body = (string)$response->getBody();
+
+$doc = new DOMDocument();
+$doc->loadHTML($body);
+$xpath = new DOMXpath($doc);
+$div = $xpath->query("//div[@id='partie_centrale']");
+$table = $doc->saveHTML($div[0]);
+
+echo $table;