我有详细信息.csv与以下内容：

name,phone,address
john,123,abc
suse,134,bca

字符串
我想插入空的新列，因此它将变为：

name,phone,city,postcode,address
john,123,"","",abc
suse,134,"","",bca

型
或者变成这样（以更容易的为准）

name,phone,city,postcode,address
john,123,city,postcode,abc
suse,134,city,postcode,bca

型
是的

<?php
$filename = 'details.csv';
$the_big_array = [];

if (($h = fopen("{$filename}", "r")) !== FALSE)
{
  while (($data = fgetcsv($h, 1000, ",")) !== FALSE)
  {
  $data[] = 'city';
  $data[] = 'postcode';

    $the_big_array[] = $data;
  }

  fclose($h);
}

echo "<pre>";
var_dump($the_big_array);
echo "</pre>";
?>

型
但我得到了这个：

name,phone,address,city,postcode
john,123,abc,city,postcode
suse,134,bca,city,postcode

型
救命啊...