Update server.php

[mlukac89]

Changed code that was causing error in console

[mlukac89]

This is a error check image, it happens when you try to send message http://prntscr.com/jx9zm3

Error is output on those 3 variables

$user_name = $tst_msg->name; //sender name
$user_message = $tst_msg->message; //message text
$user_color = $tst_msg->color; //color

When you are change it to

$user_name = $tst_msg['name']; //sender name
$user_message = $tst_msg['message']; //message text
$user_color = $tst_msg['color']; //color

then it works