Channel.Call.Failed NetConnection.Call.Failed: HTTP: Status 500 with amfphp php and mysql

Question

I have been scripting a simple database connection to check login credentials and am comming accross these errors:
Channel.Call.Failed
NetConnection.Call.Failed:
HTTP: Status 500
Any PHP code I run that is not connecting to MYSQL runs fine. But if I try to connect to the database thats what I get.
Here is my mxml:
<s:RemoteObject id="LogInService"
                             source="Novus.NovusUser.getLogIn"
                             destination="AMFPHP"
                                                            fault="faultHandler(event)"
                             showBusyCursor="true">
                              <s:method name="getLogIn" result="onResult(event)" fault="faultHandler(event)"/>
</s:RemoteObject>
Which calls this actionscript:
private function btn(event:Event):void
                                             switch(event.target.id)
                                                       case "LogInSubmit":
                                                                      LogInService.getLogIn(UserName.text, PW.text)
              break;
                              private function onResult(result:ResultEvent):void
                                             Alert.show("Result " + result.token.result);
                                             if(result.token.result == true)
                                                            currentState = "Main";
                                             else
                                                       Alert.show(String(result.token.result));
                              private function faultHandler(fault:FaultEvent):void
                                             CursorManager.removeBusyCursor();
        var errorMessage:String = "code:\n" + fault.fault.faultCode + "\n\nMessage:\n" + fault.fault.faultString + "\n\nDetail:\n" + fault.fault.faultDetail;
                                             Alert.show(errorMessage);
and calls this PHP:
If I comment out the database connection it returns a false value to me just fine but with it there it throws an error
<?php
class GetLogIn
               private $_db;
               public function getLogIn($U, $P)
                         //Connect To Database
                         $hostname='127.0.0.1';
                         $username='root';
                         $password='*********';    //not realy ***** blocked it out
                         $dbname='mydatabase';
                         try
                                        mysql_connect($hostname,$username, $password) OR DIE ('Unable to connect to database! Please try again later.');
                                        mysql_select_db($dbname);
                                        $sql = "Select * FROM empusr WHERE UserName = '$U' and Password = '$P'";
                                        mysql_close();
                                        if ($sql)
                                                       return true;
                                        else
                                                       return false;
                         catch
                                        return 'Unable to connect to database! Please try again later.';
?>
I have a crossdomain.xml but I am unsure if I have it placed right.
I also have a services.conf but am unsure if that also needs to be altered to adjust for MySQL.
Any help would be appreciated. 

Answer 1

Found the problum
The connection string had to be placed in the public _constructor function of the class.
<?php
class EmployeeService
          public function __construct()
                    $hostname='127.0.0.1';
                    $username='root';
                    $password='*********';
                    $dbname='myDatabase';
                    mysql_connect($hostname,$username, $password);
                    mysql_select_db($dbname);
          public function logIn($N, $P)
                    $query = "SELECT * FROM EmpUsr WHERE UserName = '$N' AND Password = '$P'";
                    $result = mysql_query($query);
                      if ($result)
                                return true;
                      else
                                return false;
?>