ต้องการนำค่าที่ได้จากฐานข้อมูลมาคำนวณ ดีเพื่อนๆ พี่ๆ ทุกคนนะค่ะคือเราต้องการทราบวิธีการที่จำนำค่าที่ได้จากฐานข้อมูลมาคำนวณอะค่ะ

<b>คำนวณ<br></b>
<?php
include "connectdatabase.php";
include "init.inc.php";    
$link=mysql_connect($hostname, $username, $password);
mysql_select_db($dbid) or die("unable to connect"); 
$result=mysql_query("SELECT equipprice FROM changetype");  
for ($i = 0; $i < mysql_num_rows($result); ++$i)
{$line = mysql_fetch_row($result);}
print $line[0];  
mysql_close($link);  
?>

<?php
include "connectdatabase.php";
include "init.inc.php";    
$link=mysql_connect($hostname, $username, $password);
mysql_select_db($dbid) or die("unable to connect"); 
$result=mysql_query("SELECT mainfloprice FROM mainflower");  
for ($i = 0; $i < mysql_num_rows($result); ++$i)
{$line = mysql_fetch_row($result);}
print "<br>$line[0]";  
mysql_close($link);  
?>
<?php
include "connectdatabase.php";
include "init.inc.php";    
$link=mysql_connect($hostname, $username, $password);
mysql_select_db($dbid) or die("unable to connect"); 
$result=mysql_query("SELECT mainfloquan FROM mainflower");  
for ($i = 0; $i < mysql_num_rows($result); ++$i)
{$line = mysql_fetch_row($result);}
print "<br>$line[0]";  
mysql_close($link);  
?>
<?php
include "connectdatabase.php";
include "init.inc.php";    
$link=mysql_connect($hostname, $username, $password);
mysql_select_db($dbid) or die("unable to connect"); 
$result=mysql_query("SELECT paperflowerprice FROM paperflower");  
for ($i = 0; $i < mysql_num_rows($result); ++$i)
{$line = mysql_fetch_row($result);}
print "<br>$line[0]";  
mysql_close($link);  
?>
<?php
include "connectdatabase.php";
include "init.inc.php";    
$link=mysql_connect($hostname, $username, $password);
mysql_select_db($dbid) or die("unable to connect"); 
$result=mysql_query("SELECT ribbinflowerprice FROM ribbinflower1");  
for ($i = 0; $i < mysql_num_rows($result); ++$i)
{$line = mysql_fetch_row($result);}
print "<br>$line[0]";  
mysql_close($link);  
?>
<?php
include "connectdatabase.php";
include "init.inc.php";    
$link=mysql_connect($hostname, $username, $password);
mysql_select_db($dbid) or die("unable to connect"); 
$result=mysql_query("SELECT ribbinflowprice FROM ribbinflower2");  
for ($i = 0; $i < mysql_num_rows($result); ++$i)
{$line = mysql_fetch_row($result);}
print "<br>$line[0]";  
mysql_close($link);  
?>