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ThinkPHP6 form validation and data validation: ensuring the legality of data
ThinkPHP6 form validation and data validation: ensuring the legality of data
Aug 26, 2023 pm 01:55 PM
ThinkPHP6 form validation and data validation: ensuring the legality of data
In the process of web application development, form validation ensures the legality and integrity of data An important part. The ThinkPHP6 framework provides powerful form validation and data validation functions, which can simplify the development process and help us reduce the occurrence of errors and vulnerabilities.
1. Form validation
- Validation rule declaration
ThinkPHP6 supports the use of annotations to declare validation rules for the controller's request method. We can declare validation rules using the @validate annotation on the controller's request method. Specific validation rules can be specified by creating a validator, or written directly in annotations.
use thinknnotation alidate;
class UserController
{
/**
* @validate('UserValidate.login')
*/
public function login()
{
// ...
}
}- Validator definition
Create a validator class to define specific validation rules. You can quickly create a validator through the command line:
php think make:validate UserValidate
Then write the validation rules in the generated UserValidate.php file:
namespace app alidate;
use thinkValidate;
class UserValidate extends Validate
{
protected $rule = [
'username' => 'require',
'password' => 'require',
'captcha' => 'require|captcha'
];
protected $message = [
'username.require' => '用戶名不能為空',
'password.require' => '密碼不能為空',
'captcha.require' => '驗(yàn)證碼不能為空',
'captcha.captcha' => '驗(yàn)證碼不正確'
];
}- Validation error handling
In the controller, we can use validate method for verification. If the verification fails, a ValidateException exception will be thrown. We can handle the error by catching the exception.
try {
$this->validate($data, 'app alidateUserValidate.login');
} catch (ValidateException $e) {
// 驗(yàn)證不通過(guò)，輸出錯(cuò)誤信息
dump($e->getError());
}2. Data verification
In addition to verifying the form, ThinkPHP6 also provides a wealth of data verification methods that can verify database data.
- Custom validation rules
We can define custom validation rules by creating a validator class, just create a method in the validator class. For example, we define a validation rule to check whether the user name is unique:
namespace app alidate;
use thinkValidate;
use appmodelUser;
class UserValidate extends Validate
{
// ...
// 自定義驗(yàn)證規(guī)則
protected function uniqueUsername($value, $rule, $data)
{
$user = User::where('username', $value)->find();
if ($user) {
return '用戶名已存在';
}
return true;
}
}- Data validation
Data validation can be done in the model class, we can do it by Validation rules are defined in the validate method.
namespace appmodel;
use thinkModel;
class User extends Model
{
// 定義驗(yàn)證規(guī)則
protected $validate = [
'username' => 'require|uniqueUsername:app alidateUserValidate',
'password' => 'require'
];
// ...
}Then, use the validate method in the controller to validate the data:
$user = new User;
$user->save($data);
if ($user->validate(true)->save()) {
// 數(shù)據(jù)驗(yàn)證通過(guò)，保存數(shù)據(jù)
} else {
// 驗(yàn)證不通過(guò)，輸出錯(cuò)誤信息
dump($user->getError());
}Through the above method, we can easily perform form validation and data validation, ensuring Data legality and integrity. The verification function of ThinkPHP6 provides us with a convenient and safe data verification and processing mechanism, which greatly simplifies the development process and reduces the occurrence of errors and vulnerabilities.
The above is the detailed content of ThinkPHP6 form validation and data validation: ensuring the legality of data. For more information, please follow other related articles on the PHP Chinese website!
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