php - Assigning array data to a model properties in Yii -

i working on method activate new members. following error:

undefined offset: 1

the error occurs on line contains following:

$model->username=$data[1];

is there yii way make work better?

i rookie php, oop, , yii, assistance appreciated greatly!

the method takes request user. runs method , contains key used validate account. validations stored in file same name key. inside file pipe delimited line contains date, username, email, salt, , password hash. after reading file, , exploding data @ pipe, need assign data model, , saved db.

...          $model=new users;          $model->activation_key=$_get['key'];          $path_to_validation_files = yii::app()->basepath."/data/new_member_validations";         $validation_file = $path_to_validation_files . "/".$model->activation_key.".dat";          if(is_readable($validation_file) && !empty($validation_file))         {             if($fp = fopen($validation_file, 'r'))             {                 while(!feof($fp))                 {                     $line = fread($fp, filesize($validation_file));                 }                 fclose($fp);                 $data = explode('|', $line);                  if(!empty($data)){                     $model->username=$data[1];                     $model->email=$data[2];                     $model->salt=$data[3];                     $model->password=$data[4];                 } else {                     throw new chttpexception(500,'validation file contained no data.');                 }              } else {                 throw new chttpexception(500,'cannot open validation file.');             }         } else {             throw new chttpexception(404,'validation file not found, not readable, or empty.');         }   ... 

you can use attributes property of cactiverecord class load associative array.

for example, have model properties foo , bar, , have array data('foo'=>1, 'bar'=2)

you can set $mymodel->attributes = data, , loop through array , assign properties model (but if attributes have validation rules)