How to register in yii

Registration

In the advanced template, enter the frontend/index.php?r=site/signup page and you can see the framework’s registration page

After filling in the Username, Email and Password and clicking Signup, if the format is incorrect, the rules() function in frontend/models/SignuForm will perform preliminary verification. After all the formats are correct, The data is transferred to the actionSignup() function in frontend/controllers/SiteController. The function loads the registration information entered by the user. The signup() function in frontend/models/SignupForm.

The text quoted below is the explanation function The specific details in it will not affect the whole if you don’t read it. Because there is no folding text function, the quotation method is used. The same below. The

if (!$this->validate()) {
  return null;
}

signup() function first calls the validate() function in yii2/base/Model. Verification
The first step is to clear the error message when using the rules() function in frontend/models/SignuForm when the user inputs

if ($clearErrors) {
  $this->clearErrors();
}

The second step is that the beforeValidate() function triggers the beforeValidate event and returns true

The third step, set the scenario, the default is default

The fourth step, because the $attributeNames here is null,

$attributeNames = $this->activeAttributes();

returns after execution

array (3) { [0]=> string(8) "username" [1]=> string(5) "email" [2]=> string(8) >"password" }

The fifth step, $this->getActiveValidators() will get the 11 validation rules in rules() in frontend/models/SignuForm to validateAttributes() for verification

Six steps, execute the afterValidate() function to trigger the afterValidate event

Finally, if all verifications pass, $this->hasErrors() is false, so the function finally returns true

Let’s take a look at the fields of the data table user

The user has entered username, password and email. How does the Yii2 framework generate other fields? Let’s look at password_hash first. The password generation in the signup function in SignupFrom is the setPassword function, which is in common/models/User. The setPassword function calls the generatePasswordHash function of each rule in yii2/base/Security.

if (function_exists('password_hash')) {
  /** @noinspection PhpUndefinedConstantInspection */
  return password_hash($password, PASSWORD_DEFAULT, ['cost' => $cost]);
}

If there is, use the password_hash function for encryption. If PHP does not have a password_hash function, use the crypt function for encryption. The initial judgment is that it is to be compatible with PHP versions lower than 5.5. After all, versions greater than 5.5 only begin to have it. password_hash function

common/models/User's signup() function will continue to generate an auth key after encrypting the password. The auth key is the verification information when the user clicks remember me when logging in.

The auth key generation method is also generateRandomString in yii2/base/Security. generateRandomString calls the generateRandomKey function. If your PHP version is 5.2~5.6 or 7, use random_bytes to generate a 32-word Section string, if not, when the system you are using is windows and OpenSSL is installed, the openssl_random_pseudo_bytes function will be called to generate it. If you do not install OpenSSL, mcrypt_create_iv will be used to generate it.

If the system you are using is not Windows, you need to call /dev/urandom. FreeBSD system is special. It will call /dev/random, and then call the stream_set_read_buffer method to generate an 8-byte character file. After generation , read 32 bytes in the file through the fread function, and then return the data.
password_reset_token is empty when the user registers. It is generated when the user forgets the password and clicks reset it on the login page. It is used for verification when the user resets the password after sending an email.

status is defined in common/models/User

const STATUS_DELETED = 0;
const STATUS_ACTIVE = 10;

The status in rules defaults to 10 when a user registers,
created_time and updated_time are also in common/models/ The

user's data generated in the behaviors() function in User is verified to be qualified, plus the data generated by the framework, and then stored in the user table of the data.

Recommended learning: yii framework

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