gistfile1.php

<?php

$base_dir = __DIR__ . '/PATH_TO_SITE/sites/all/modules/features';

function drupal_parse_info_format($data) {
  $info = array();
  $constants = get_defined_constants();

  if (preg_match_all('
    @^\s*                           # Start at the beginning of a line, ignoring leading whitespace
    ((?:
      [^=;\[\]]|                    # Key names cannot contain equal signs, semi-colons or square brackets,
      \[[^\[\]]*\]                  # unless they are balanced and not nested
    )+?)
    \s*=\s*                         # Key/value pairs are separated by equal signs (ignoring white-space)
    (?:
      ("(?:[^"]|(?<=\\\\)")*")|     # Double-quoted string, which may contain slash-escaped quotes/slashes
      (\'(?:[^\']|(?<=\\\\)\')*\')| # Single-quoted string, which may contain slash-escaped quotes/slashes
      ([^\r\n]*?)                   # Non-quoted string
    )\s*$                           # Stop at the next end of a line, ignoring trailing whitespace
    @msx', $data, $matches, PREG_SET_ORDER)) {
    foreach ($matches as $match) {
      // Fetch the key and value string.
      $i = 0;
      foreach (array('key', 'value1', 'value2', 'value3') as $var) {
        $$var = isset($match[++$i]) ? $match[$i] : '';
      }
      $value = stripslashes(substr($value1, 1, -1)) . stripslashes(substr($value2, 1, -1)) . $value3;

      // Parse array syntax.
      $keys = preg_split('/\]?\[/', rtrim($key, ']'));
      $last = array_pop($keys);
      $parent = &$info;

      // Create nested arrays.
      foreach ($keys as $key) {
        if ($key == '') {
          $key = count($parent);
        }
        if (!isset($parent[$key]) || !is_array($parent[$key])) {
          $parent[$key] = array();
        }
        $parent = &$parent[$key];
      }

      // Handle PHP constants.
      if (isset($constants[$value])) {
        $value = $constants[$value];
      }

      // Insert actual value.
      if ($last == '') {
        $last = count($parent);
      }
      $parent[$last] = $value;
    }
  }

  return $info;
}

$info_array = array();


if (!file_exists($base_dir)) {
  die("base dir $base_dir doesn't exist, fool!");
} else {
  if ($handle = opendir($base_dir)) {
    while (false !== ($entry = readdir($handle))) {
      if (substr($entry, 0, 1) != '.') {
        $path_to_dir = $base_dir . '/' . $entry;
        $info_file = $path_to_dir . '/' . $entry . '.info';
        if (!file_exists($info_file)) {
          die("info file $info_file doesn't exist, fool!");
        } else {
          $info_str = file_get_contents($info_file);
          $info_array[$entry] = drupal_parse_info_format($info_str);
        }
      }
    }
    closedir($handle);
  }
}

$csv_array = array();
foreach($info_array as $feature => $feature_info) {
  if (isset($feature_info['features']['node'])) {
    $content_type = $feature_info['features']['node'][0];
    foreach($feature_info['features']['field_base'] as $field_base)
    $csv_array[] = array(
      'field_base' => $field_base,
      'content_type' => $content_type,
      'branch' => '',
      'feature' => $feature,
    );
  }

}

var_dump($csv_array);