Add an option to download the data as csv

download.php

@@ -0,0 +1,48 @@
+<?php
+
+function array2csv(array &$array) {
+	if (count($array) == 0) {
+		return null;
+	}
+	ob_start();
+	$df = fopen("php://output", 'w');
+	fputcsv($df, array_keys(reset($array)));
+	foreach ($array as $row) {
+		fputcsv($df, $row);
+	}
+	fclose($df);
+	return ob_get_clean();
+}
+
+function download_send_headers($filename) {
+	// disable caching
+	$now = gmdate("D, d M Y H:i:s");
+	header("Expires: Tue, 03 Jul 2001 06:00:00 GMT");
+	header("Cache-Control: max-age=0, no-cache, must-revalidate, proxy-revalidate");
+	header("Last-Modified: {$now} GMT");
+
+	// force download
+	header("Content-Type: application/force-download");
+	header("Content-Type: application/octet-stream");
+	header("Content-Type: application/download");
+
+	// disposition / encoding on response body
+	header("Content-Disposition: attachment;filename={$filename}");
+	header("Content-Transfer-Encoding: binary");
+}
+
+include('db.php');
+$db = new DataBase();
+if (!$db->isInit()) {
+	echo 'Error db init';
+	return;
+}
+
+if (!isset($_GET['id'])) {
+	echo json_encode(false);
+}
+$id = $_GET['id'];
+
+download_send_headers("data_export_" . date("Y-m-d") . ".csv");
+echo array2csv($db->getWordsList($id));
+die();

lang/lang_fr.ini

@@ -57,3 +57,4 @@ title = "Liste des mots du nuage"
 word = "Mot"
 count = "Nombre"
 percent = "%"
+download = "Télécharger la liste"

result.php

@@ -51,6 +51,7 @@ if (isset($id)) {
 		</thead>
 	</table>
 </details>
+<a href="download.php?id=<?php echo $id ?>"><?php echo L::wordsList_download ?></a>
 <?php
 	}
 }