Question

public function registration()
    {
    $this->load->library('form_validation');
    // field name, error message, validation rules
    $this->form_validation->set_rules('user_name', 'User Name', 'trim|required|min_length[4]|xss_clean');
    $this->form_validation->set_rules('email_address', 'Your Email', 'trim|required|valid_email');`enter code here`
    $this->form_validation->set_rules('password', 'Password', 'trim|required|min_length[4]|max_length[32]');
    $this->form_validation->set_rules('con_password', 'Password Confirmation', 'trim|required|matches[password]');
        }

我在codeigniter中执行验证。我怎么能在php native做类似的工作？我的意思是验证

Answer 1

您可以通过php变量$_POST访问已发布的表单值。然后，您需要在php中编写执行不同验证的函数： -

必填：这很简单，只需检查值不是空字符串
修剪：有built in function in php which does this
有效的电子邮件：您需要使用regular expressions for this

这些应该让你开始，其余的have a look at how codeigniter does them或article on server side validation with php。

希望这有帮助！

Answer 2

我过去的做法是为它构建对象......表单对象，表单字段对象和表单字段验证器对象。

因此，您需要创建所有的字段对象，并在需要时将验证器附加到它们，然后将整个批次附加到表单中 - 这样您最终会得到类似的结果：

$oFieldUsername = new FormField('username', new Validator(Validator::TYPE_EMAIL));
$oFieldPassword = new FormField('password', new Validator(Validator::TYPE_PASSWORD));

$oForm = new Form(Form::METHOD_POST, '/path/to/action.php');
$oForm->attachField($oFieldUsername);
$oForm->attachField($oFieldPassword);

//form has not been posted
if(!$oForm->isReceived()) {
  $oForm->render('/path/to/view.tpl.php');
}

//the form HAS been posted but IS NOT VALID
elseif(!$oForm->isValid()) {
  $oForm->render('/path/to/view.tpl.php');
}

//the form HAS been posted and the data LOOKS valid
else {
  //do processing and hand-off
}

验证器处理诸如确定是否需要字段数据，如果数据匹配空字符串（RegExp）之类的事情，那么例如它不是必需的。

但他们也可以处理电子邮件验证（有或没有getmxrr（）查询）或其他任何东西，你只是为特定情况构建Validator类型......或者你有通用验证器：

new Validator(Validator::TYPE_EMAIL); //basic email validator
new Validator(Validator::TYPE_EMAIL_WITH_MX); //email validator with getmxrr()
new Validator(Validator::TYPE_REGEXP, '/^[\w]+$/'); //generic regular expression with the pattern to match as the second parameter
new Validator(Validator::TYPE_INT_MIN, 10); //integer with a minimum value of 10
new Validator(Validator::TYPE_REGEXP, '/^[\w\s]*$/', true); //the third parameter could be an override so that the validation is optional - if the field has a value it MUST validate, if it doesn't have a value, it's fine

这为您提供了验证所需的灵活性。所有Form::isValid()方法都循环遍历所有附加字段，检查它们是否具有Validators，如果是，则Validator::isValid()方法是否返回true。

您还可以使用以下内容将多个验证器附加到字段：

//the field value must be an integer between 5 and 10 (inclusive)
$oField->addValidator(new Validator(Validator::TYPE_INT_MIN, 5));
$oField->addValidator(new Validator(Validator::TYPE_INT_MAX, 10));

......无论如何，我就是这样做的。

在php中输入验证

2 个答案: