php - undefined index for database field -


the below code show warning undefined index database field name 'zatitle' spelling correct in both code , database. can not find out error please help.

    include('connect.php');     dbconnect();       $myquery=mysql_query("select zaid,zatext, max(zatitle) announcements") or die(mysql_error());      if (mysql_num_rows($myquery) == '1') {      $asession=mysql_fetch_array($myquery);      $ses = $asession['zatitle'];        if($ses=='1'){         $one='2013-2014';        }elseif($ses=='2'){         $one='2014-2015';        }elseif($ses=='3'){         $one='2015-2016';        }elseif($ses=='4'){         $one='2016-2017';        }

for code warning problem given below

notice: undefined index: zatitle in c:\xampp\htdocs\home\home.php on line 9

use alias column max.

$myquery=mysql_query("select zaid,zatext, max(zatitle) zatitle announcements") or die(mysql_error());                                                        ^^^^^^^^^^

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