Question

I am calculating one parameter(X) this way:

<?php
$link=mysql_connect("localhost","root","");
mysql_select_db("hand");

$result = mysql_query("select * from sessions",$link);
$num_calls = mysql_num_rows($result);

echo '<br/>'."\n Total X :\n $num_calls ".'<br/>';
?>

I am calculating another parameter(Y) this way:

<?php
mysql_connect("localhost","root","");
mysql_select_db("hand");

$result = mysql_query("SELECT * FROM cars WHERE start_at > TIMESTAMPADD(WEEK, -4, CURDATE())  AND TIMESTAMPDIFF(MINUTE, start_at, end_at) > 5");

$num_rows = mysql_num_rows($result);

echo '<br/>'."\n Total Y :\n $num_rows ".'<br/>';
?>

At another place I need the to calculate the ration X/Y. How do I do that as it need to be done in another field in the same html page.

Answer 1

You do:

$num_calls = intval($num_calls); // Make sure these are integers
$num_rows = intval($num_rows);

$calculation = $num_calls / $num_rows;
echo $calculation;