Format::to_html PHP Method

    public function to_html($data = NULL)
    {
        // If no data is passed as a parameter, then use the data passed
        // via the constructor
        if ($data === NULL && func_num_args() === 0) {
            $data = $this->_data;
        }
        // Cast as an array if not already
        if (is_array($data) === FALSE) {
            $data = (array) $data;
        }
        // Check if it's a multi-dimensional array
        if (isset($data[0]) && count($data) !== count($data, COUNT_RECURSIVE)) {
            // Multi-dimensional array
            $headings = array_keys($data[0]);
        } else {
            // Single array
            $headings = array_keys($data);
            $data = [$data];
        }
        // Load the table library
        $this->_CI->load->library('table');
        $this->_CI->table->set_heading($headings);
        foreach ($data as $row) {
            // Suppressing the "array to string conversion" notice
            // Keep the "evil" @ here
            $row = @array_map('strval', $row);
            $this->_CI->table->add_row($row);
        }
        return $this->_CI->table->generate();
    }