Display the user's weight lost in the past week

Posted on 16th Feb 2014 by admin

Hello everyone,

I am working on a weight loss app for my site, and I want to display the user's weight lost in the past week, I have the current weight and the total weight lost today working great, but I was at a loss on how to get the weight for the past week to work

Here is the code that I'm working with:Code: [Select]mysql_select_db($database_getfit, $getfit);
$query_getfit_xml = "SELECT * FROM jos_my_weight ORDER BY `date` DESC"; // DESC and ASC
$getfit_xml = mysql_query($query_getfit_xml, $getfit) or die(mysql_error());
$row_getfit_xml = mysql_fetch_assoc($getfit_xml);
$totalRows_getfit_xml = mysql_num_rows($getfit_xml);

// START WEIGHT
$start_weight = '230';

// GOAL WEIGHT
$goal_weight = '175';

$rows = array();
while($row = mysql_fetch_assoc($getfit_xml)):
$rows[] = $row;
endwhile;

$xml = '<?xml version="1.0" encoding="utf-8"?>'."n";
$xml .= '<chart>'."n";
$xml .= ' <chart_data>'."n";

// GET DATES
$xml .= ' <row>'."n";
$xml .= ' <null/>'."n";
foreach($rows as $row):
$xml .= '<string>'.$row['date'].'</string>'."n";
endforeach;
$xml .= ' </row>'."n";

// GET CURRENT WEIGHTS
$xml .= ' <row>'."n";
$xml .= ' <string>Current Weight</string>'."n";
foreach($rows as $row):
$xml .= '<number>'.$row['weight'].'</number>'."n";
endforeach;
$xml .= ' </row>'."n";

// GET TOTAL WEIGHT LOST TO DATE
$xml .= ' <row>'."n";
$xml .= ' <string>Total weight lost to date</string>'."n";
foreach($rows as $row):
$weight_lost = $start_weight - $row['weight'];
$xml .= '<number>'.$weight_lost.'</number>'."n";
endforeach;
$xml .= ' </row>'."n";

// GET WEIGHT LOST THIS WEEK
$xml .= ' <row>'."n";
$xml .= ' <string>Total weight lost to date</string>'."n";

$i = 0;
foreach($rows as $row):
$xml .= '<number>'.$row['weight'].'</number>'."n";
$i++;
endforeach;

$xml .= ' </row>'."n";

$xml .= ' </chart_data>'."n";
$xml .= '</chart>';

echo $xml;

mysql_free_result($getfit_xml);