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Yii 2 Validator that validates string contents for count, blacklist and whitelist.

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v0.1.0 2017-02-15 10:00 UTC

This package is auto-updated.

Last update: 2024-02-06 22:28:31 UTC


WordValidator validates that the attribute value has a specific words count and checks this value against whitelist and blacklist. It is a port of from Anton Yakushin from Yii 1 to Yii 2.


Tested in Yii 2.0.9.


composer require thyseus/yii2-word-validator


Add the following code to your model class rules() method

use thyseus\validators\WordValidator;

public function rules()
   return [
       //other validators...
       array('attributeName', WordValidator::className(), /*add custom rules here*/),

For example:

use thyseus\validators\WordValidator;

public function rules() {
  return [
    [['message'], WordValidator::className(),
    'min' => 2,
    'max' => 5,
    'whitelist' => array('please', 'test'),
    'blacklist' => array('restricted', 'email.*'), //could be a regular expression
    'messages'  => array(
        'max' => '{attribute} is too long (maximum is {max} words, but now it\'s {length})'

Validation rules

  • max - the attribute should contain less (or equal) words count;
  • min - minimum words count;
  • exact - expected only this words count;
  • blacklist - array of words that should not be in the attribute.
              There also could be a regular expression;
  • whitelist - at least one of these words/expressions must be in the attribute.


Any default error message could be overridden using messages parameter. All messages support {attribute} and {length} placeholders. Each validation method adds it's value to a correspond (the same as a name) placeholder. For min rule a message could be specified as:

    'messages' => array(
        'min' => 'Your {attribute} is now has {length} words. But should be
             at least {min}'

Client side validation is supported.