...
  } catch (CustomEx_1 $ex) {
    echo $ex->getMessage();
  }
...

Add(EntryPoint,12010646,63,105)
{
 link(onStart,8731090:doTry,[])
}
Add(Try_catch,8731090,112,105)
{
 ObjectName="ex"
 link(onTry,501451:doEcho,[])
 link(onCatch2,13719349:doPrint,[(160,118)(160,153)])
}
Add(CallFunc,13719349,175,147)
{
 Name="$ex->getMessage"
 link(onPrint,16405751:doEcho,[])
}
Add(Echo,501451,175,105)
{
 Message="Text on Try"
}
Add(Echo,16405751,224,147)
{
 link(Message,13719349:Result,[(230,135)(214,135)(214,192)(181,192)])
}

  try {
    echo "Text on Try";
  } catch (Exception $ex) {
    $res3 = $ex->getMessage();
    echo $res3;
  }