first commit

application/helpers/export_csv_helper.php

@@ -0,0 +1,23 @@
+<?php
+defined('BASEPATH') or exit('No direct script access allowed');
+
+function export($r, $name = 'download') {
+    set_time_limit(0);
+    $filename = $name . "-" . date("Y-m-d-H-i-s") . ".csv";
+    header('Content-Type: application/vnd.ms-excel');
+    header('Content-Disposition: attachment;filename="' . $filename . '"');
+    header('Cache-Control: max-age=0');
+    
+    $i = 0;
+    if (ob_get_contents()) ob_end_clean();
+    $out = fopen('php://output', 'w');
+    while ($row = $r->unbuffered_row()) {
+        $f = (array) $row;
+        if ($i == 0) {
+            fputcsv($out, array_keys($f), ",");
+        }
+        fputcsv($out, array_values($f), ",");
+        $i++;
+    }
+    fclose($out);
+}