php - How do you query two variables in order to return one result? -


i have database columns assigned username, datepro, , quantity. $datepro date $quantity of material produced $username. i'm trying query results echo $quantity of material produced during month $username.

i've experimented , searched posted cannot seem figure out on own. guidance appreciated. here's have...

$resultdate = mysql_query ("select datepro power username = '$username' ") or die(mysql_error()) ;  $resultquant = mysql_query("select quantity power username = '$username' ") or die(mysql_error()) ;  $datepro = mysql_fetch_row($resultdate); $quantity = mysql_fetch_row($resultquant);  if ($datepro = '%y-01-%d') echo $quantity;

are after this:

$queryobj = mysql_query ("select datepro, quantity  power username = '$username' ") or die(mysql_error()) ;  $row = mysql_fetch_assoc($queryobj );   if ($row['datepro'] == '%y-01-%d') echo $row['quantity'];

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