Trying to get property of non-object

Yii 2.0 General Discussions
1

Need you help guys i got this error. 1st loop successfully inserted 1st record Dont know why on the 2nd loop of do while it display this error.

PHP Notice – yii\base\ErrorException

Trying to get property of non-object

"$studid = $user->studid;" <-- Highlighted error

Need to query the user table to check the username and get the studid(student ID No. FK)

User Table (userid(pk), username, password, studid(fk))

$model->recipient // client inputted 3 username seperated by comma(glads,venus,nico) in the textInput

//parse the usernames form textInput

$userrecipient = explode(",", $model->recipient); //saved as an array[glads,venus,nico]

        &#036;index = 0;


        


        


        &#036;user = new User();


        &#036;receiver = new Manage(); 


        


        do {


            


            


            &#036;user = User::find()


                    -&gt;where(['username' =&gt; &#036;userrecipient[&#036;index]])


                    -&gt;one();// &lt;-- seems on 2nd loop this command is not executing?

//insert to manage table

        &#036;studid = &#036;user-&gt;studid;//&lt;-- highlighted error &quot;Trying to get property of non-object&quot; on the 2nd insertion


        &#036;receiver-&gt;studid = &#036;studid ; // Student receiver


        &#036;receiver-&gt;msgid = &#036;msgid;


        &#036;receiver-&gt;msg_statusid = 2; // 2= received by default 


        &#036;receiver-&gt;date = date('Y-m-d H:i:s');


        &#036;receiver-&gt;discard = 0;


        &#036;receiver-&gt;unread = 0;


        &#036;receiver-&gt;bounced = 0;


        &#036;receiver-&gt;save();


            


        








            &#036;index++;


        } while (&#036;index &lt; count(&#036;userrecipient));
2

Remove one from your query:




$user = User::find()->where(['username' => $userrecipient[$index]]);

Tell me if it works thanks

3

Are there any spaces you forgot to trim around the recipients? That’s what it looks like to me.

4

removing one does not work

how am i going to trim the spaces? any suggestion?

5

You can trim whitespaces with trim()

http://php.net/manual/en/function.trim.php

You should also create a way to handle errors if the student is not found.

Try something like this maybe:


foreach($userrecipient as $recipient) 

{

    $user = User::find()

    ->where(['username' => trim($recipient)])

    ->one()

   

   if($user != null)

   {

       Do your thing

   }

   else echo 'Username '.$recipient.' not found.';

}