Question

Users.php (model):

...
public function hashPassword($password){
    $hashed = hash('sha256', $password . self::HASH_CODE);
    return $hashed;
}
...

UserIdentity.php

...
else if($user->password!==Users::hashPassword($this->password))
...

Error:

Non-static method Users::hashPassword() should not be called statically, assuming $this from incompatible context

Answer 1

You’ll need to define hashPassword() as a static function in order to call it with Users::hashPassword():

public static function hashPassword($password) {
    ...

Otherwise, you can create an instance of the Users class and call it in a non-static manner:

$users = new Users();
$users->hashPassword($password);

In a strictly-yii sense, you may be able to call it with the following (depending on your setup):

Yii::app()->Users->hashPassword($password);