php - How can I convert these two queries in a loop into a single JOINed query? -


i trying data table (mostkills weapon in table on 300 kills). did normal query

$q = $mysql->query("select * `kills`") or die($mysql->error);

but when tried 

            $query2 = $mysql->query("select `killerid`, count(`killerid`) tot_kills `kills` `killtext` '%$gun%' group `killerid` order `tot_kills` desc;") or die($mysql->error);             $kdata = $query2->fetch_assoc();              $query3 = $mysql->query("select `username` `players` `id` = '" . $kdata['killerid'] . "'") or die($mysql->error);             $udata = $query3->fetch_assoc();              $array[$gun]['kills']++;             $array[$gun]['gun'] = $gun;             $array[$gun]['bestkiller'] = $udata['username'];             $array[$gun]['killamount'] = $kdata['tot_kills'];              function sortbykills($a, $b) {                 return  $b['kills'] - $a['kills'];             }              usort($array, 'sortbykills');              foreach($array $i => $value)              {                 // table here             }

i had in while loop, caused there around 600 queries, , not acceptable. have tips on how can optimize this, or turn single query?

i heared join this, don't know it, , wondering if guys me

try this...

i added inner join , added username select clause. min() way include username column in select , not have impact on result long have 1 username every killerid

select `killerid`     , count(`killerid`) tot_kills     , min(`username`) username `kills` inner join `players`     on `players`.`id` = `kills`.`killerid` `killtext` '%$gun%' group `killerid` order `tot_kills` desc

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