Parse behat data tables into mongo documents

gistfile1.txt

/**
     * @Given /^existing "([^"]*)" with data:$/
     */
    public function existingWithData($arg1, TableNode $table)
    {
        $collection = $arg1;
        foreach ($table->getHash() as $row) {
            $data = array();
            foreach ($row as $key => $value) {
                if (strpos($key, "[]") !== false) {
                    $key = str_replace("[]", "", $key);
                    $data[$key] = explode(',', $value);
                } else if (strpos($key, ".") !== false) {
                    $keyParts = array_reverse(explode('.', $key));
                    $tempData = [];
                    for ($c = 0; $c < count($keyParts); $c++) {
                        if ($c == count($keyParts) - 1) {
                            if (isset($data[$keyParts[$c]])) {
                                $data[$keyParts[$c]] = array_merge_recursive($data[$keyParts[$c]], $tempData);
                            } else {
                                $data[$keyParts[$c]] = $tempData;
                            }
                        } else if ($c == 0) {
                            $tempData = [$keyParts[$c] => $value];
                        } else {
                            $tempData = [$keyParts[$c] => $tempData];
                        }
                    }
                } else {
                    $data[$key] = $value;
                }
            }
            self::$mongo->test->$collection->insert($data);
        }

    }



Parses data like:
        | buy_url                | tags[]            | type | origin.name | origin.url |
        | http://www.google.com/ | testtag1,testtag2 | deal | Test Tag 1  | testtag1   |

into valid mongo documents like: 

{
  "buy_url" : "http://www.google.com/", 
  "tags" : [ "testtag1", "testtag2" ], 
  "type" : "deal",
  "origin" : { 
    "name" : "Test Tag 1", 
    "url" : "testtag1"
  } 
}