int fputcsv ( resource handle , arrayfields [, string delimiter = "," [, stringenclosure = '"' [, string $escape_char = "\\" ]]] )

<?php
   list = array (
      array('aaa', 'bbb', 'ccc', 'dddd'),
      array('123', '456', '789'),
      array('"aaa"', '"bbb"')     );fp = fopen("/PhpProject/sample.csv", "w");

   foreach(list asfields) {
      fputcsv(fp,fields);
   }
   echo "The list data has been inserted successfully to .csv file";

   fclose($fp);
?>

The list data has been inserted successfully to .csv file