<?php
  
  // $data = json_decode($_POST['data'], true);
  $data = $_POST['data'];
  $arrayData = explode('|',$data);
   
  array_to_csv_download($arrayData, "3dHouse.csv");
  function array_to_csv_download($array, $filename = "3dHouse.csv", $delimiter=",") {
      header('Content-Type: application/csv');
      header('Content-Disposition: attachment; filename="'.$filename.'";');
  
      // open the "output" stream
      // see http://www.php.net/manual/en/wrappers.php.php#refsect2-wrappers.php-unknown-unknown-unknown-descriptioq
      $f = fopen('php://output', 'w');
  
      foreach ($array as $line) {
          fputcsv($f, explode(',',$line));
      }
  }
  
  ?>