Question

I have joined multiple tables with INNER JOIN and got the output which resembles this:

SPORT COUNTRY LEAGUE MATCH
SPORT COUNTRY LEAGUE MATCH
SPORT COUNTRY LEAGUE MATCH

I’d like SPORT to be displayed only the first time it’s found in the query. Same with COUNTRY and LEAGUE, so they serve as a header for the matches. Like this:

SPORT
COUNTRY
LEAGUE1
MATCH
MATCH
MATCH
LEAGUE2
MATCH
MATCH
MATCH

The code:

if ($db_found) {

$SQL ="
select sportname, 
  tournament_templatename, 
  tournament_stagename,    
  GROUP_CONCAT(eventname) as event_name
from ('SELECT 
         event.id AS eventid,
         event.name AS eventname,
         event.tournament_stageFK AS eventtournamentstageFK,
         event.startdate AS eventstartdate,
         tournament_stage.id AS tournament_stageid,
         tournament_stage.name AS tournament_stagename,
         tournament_stage.tournamentFK AS tournament_stagetournamentFK,
         tournament.id AS tournamentid,
         tournament.name AS tournamentname,
         tournament.tournament_templateFK AS tournamenttournament_templateFK,
         tournament_template.id AS tournamenttemplateid,
         tournament_template.name AS tournament_templatename,
         tournament_template.sportFK AS tournament_templatesportFK,
         sport.id AS sportid,
         sport.name AS sportname
       FROM event 
         INNER JOIN tournament_stage 
           ON event.tournament_stageFK=tournament_stage.id
         INNER JOIN tournament 
           ON tournament_stage.tournamentFK=tournament.id 
         INNER JOIN tournament_template 
           ON tournament.tournament_templateFK=tournament_template.id 
         INNER JOIN sport 
           ON tournament_template.sportFK=sport.id
       WHERE
         DATE(event.startdate) = CURRENT_DATE() 
       ORDER BY
         sport.id ASC, tournament_template.name ASC, event.startdate ASC'
     )
GROUP BY 
  sportname, tournament_templatename, tournament_stagename
ORDER BY 
  sportname, tournament_templatename, tournament_stagename";
$result = mysql_query($SQL);

echo "<table border='1' style='border-collapse: collapse;border-color: white;
font-size:8px; background-color: #c8ccce; width:100%;'>";

while($db_field=mysql_fetch_assoc($result)){
echo  "<tr>" , "<td>" , $db_field['sportname'] , "</td> " , "<td>" ,
$db_field['tournament_templatename'] , "</td>" , "<td>" , 
$db_field['tournament_stagename'] , "</td>" , "<td>" , $db_field['eventstartdate'] ,
"</td>" , "<td>" , $db_field['eventname'] , "</td>" , "</tr>";
}
echo "</table>";
mysql_close($db_handle);
}

Thanks for helping out a PHP newbie.

Answer 1

Over your query you can:

$SQL ="
select sportname, 
   tournament_templatename, 
   tournament_stagename,    
   GROUP_CONCAT(eventname) as eventname
from (
SELECT event.id AS eventid,
event.name AS eventname,
event.tournament_stageFK AS eventtournamentstageFK,
event.startdate AS eventstartdate,
tournament_stage.id AS tournament_stageid,
tournament_stage.name AS tournament_stagename,
tournament_stage.tournamentFK AS tournament_stagetournamentFK,
tournament.id AS tournamentid,
tournament.name AS tournamentname,
tournament.tournament_templateFK AS tournamenttournament_templateFK,
tournament_template.id AS tournamenttemplateid,
tournament_template.name AS tournament_templatename,
tournament_template.sportFK AS tournament_templatesportFK,
sport.id AS sportid,
sport.name AS sportname
FROM
event INNER JOIN tournament_stage ON event.tournament_stageFK=tournament_stage.id
INNER JOIN tournament ON tournament_stage.tournamentFK=tournament.id 
INNER JOIN tournament_template 
ON tournament.tournament_templateFK=tournament_template.id 
INNER JOIN sport ON tournament_template.sportFK=sport.id
WHERE
DATE(event.startdate) = CURRENT_DATE() 
) a
group by sportname, tournament_templatename, tournament_stagename
order by sportname, tournament_templatename, tournament_stagename";

and then fetch the results, with first 3 columns already unique.

php code remains the same:

$result = mysql_query($SQL);

while($db_field=mysql_fetch_assoc($result)){
echo $db_field['sportname'] , " " , $db_field['tournament_templatename'] , " " ,      
$db_field['tournament_stagename']  ,  " " , $db_field['eventname'];
echo "<br>";
}