I am trying to create a pie chart based on information I am getting
from a database. Yesterday when I was trying to get it to work, things
were going well; however, today I am having no luck. I am following
the same procedure as yesterday, but the graph is not showing up.
Here is my code:
<?php
//set the username, password, and database name
$username="user";
$password="pass";
$database="data";
//connect and select the database
@mysql_connect(localhost,$username,$password) or die("Cannot connect
to database");
@mysql_select_db($database) or die( "Unable to select database");
//Gets all of the information from each of the sections and adds them
up. Generates pie from the results
//get all information values
$query = "SELECT * FROM answer WHERE answerID=2";
$result=mysql_query($query);
$array=mysql_fetch_array($result);
mysql_close();
$n=0;
$m=0;
$p=0;
$s=0;
$f=0;
//Go through the answers and see how many were each type.
//n=nc, m=mc, etc.
for($i=1; $i <= 79; $i++){
switch($array[$i]){
case 1:
$n++;
break;
case 2:
$m++;
break;
case 3:
$p++;
break;
case 4:
$s++;
break;
case 5:
$f++;
break;
}
}
echo "n:".$n."m: ".$m."p: ".$p."s: ".$s."f: ".$f;
$title="Results";
include("header.php");
?>
<html>
<body>
<form>
<a href="session.php"><font face="Arial">Return to Main Menu</font></
a>
<br>
<br>
<!--From Google chart apis (http://code.google.com/apis/chart/
basics.html):
http://chart.apis... - Chart API's location
& - separate paramaters
chs - chart's size in pixels
chd - chart's data
cht - chart type
chl - chart labels (separated with |). If you want a
legend instead,
use the command chdl (same format otherwise)-->
<center><img src="http://chart.apis.google.com/chart?chs=750x300
&chd=t:<?php $n; ?>,<?php $m; ?>,<?php $p; ?>,<?
php $s; ?>,<?php
$f; ?>
&cht=p
&chl=NC|MC|PC|SC|FC"/></center>
<br>
</form>
</div>
</body>
</html>
<?php
include("footer.html");
?>
The echo statements are showing the correct values. Is there any
particular reason the pie is not showing?
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