如何在我的PHP应用程序中仅显示Oracle的顶级错误消息

I have an application which connects to my Oracle Database through PHP OCI.

I am receiving the error from the database call like bellow

$r = oci_execute($stid);
   if (!$r) {

     $e = oci_error($stid); // For oci_execute errors pass the statement handle
     die($callback . '(' . json_encode(
     array_merge(
         array(

          'STATUS' => 'FALSE'
        ),
       array(

        'ERROR_MESSAGE' => $e['message']
      )
     )
   ) .
' )
');

My problem is, the error is always too long because it drills down to the source of the error like below

"ORA-01841: (full) year must be between -4713 and +9999, and not be 0 ORA-06512: at "APPOWN.CLIENTINTERFACE", line 133 ORA-06512: at "APPOWN.CLIENTORDER_API", line 3609 ORA-06512: at "APPOWN.CLIENTORDER_API", line 447 ORA-06512: at "APPOWN.CLIENTORDER_API", line 3184 ORA-06512: at line 26"

I only need the top level error message like below

(full) year must be between -4713 and +9999, and not be 0

Is there a way (except doing some text work on the response string) to get a simple error message?