php - i getting data from a db sql -

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i getting data db , want each row data other table 

$query = "select use ur user='gue'";  $result = mysql_query($query) or die(mysql_error()); while($row = mysql_fetch_array($result)){     echo $row['use'];          echo '<br>'; }

now want each $row['use'] should data table 'my'

$query = "select sum(mon) use='$use'";  //$use = row['use']  $result = mysql_query($query) or die(mysql_error());  while($row = mysql_fetch_array($result)){     echo $row['sum(mon)']; }

is there solution?

select ur.use, sum(my.mon)     ur         inner join             on ur.use = my.use     ur.user = 'gue'     group ur.use

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