如何解决YYYY/MM/DD日期格式的Codeigniter验证问题

$config = array(
    'date_format' => array(
        'field' => 'date_field',
        'label' => 'Date Field',
        'rules' => 'callback_validate_date_format'
    )
);

public function validate_date_format($date)
{
    if (DateTime::createFromFormat('Y/m/d', $date) === false) {
        $this->form_validation->set_message('validate_date_format', 'The {field} field must be in YYYY/MM/DD format.');
        return false;
    }
    return true;
}

$this->form_validation->set_rules('date_field', 'Date Field', 'regex_match[/^\d{4}\/\d{2}\/\d{2}$/]');

use Carbon\Carbon;

public function validate_date_format($date)
{
    try {
        $carbonDate = Carbon::createFromFormat('Y/m/d', $date);
        // 验证其他条件
        return true;
    } catch (Exception $e) {
        $this->form_validation->set_message('validate_date_format', 'The {field} field must be in YYYY/MM/DD format.');
        return false;
    }
}