* Sunda Cyber Army 2k17 *
Indonesia Defacer ~
<?php
// create connection to database
$host = "webdev.iyaserver.com"; // database server address
$userid = "dent_student"; // database user account name
$userpw = "code4Studentuse"; // database user password
$db = "dent_health"; // database name
$mysql = new mysqli(
$host,
$userid,
$userpw,
$db);
if($mysql->connect_errno) {
echo "db connection error : " . $mysql->connect_error;
exit();
}
?>
<!-- these php blocks do not need to be separated, but might as well since in many pages with
full/normal html likely this block would be lower down in the code -->
<?php
/* php variable notes:
- php variables have dollar signs in front of their names, like $filter
- php variables passed through page url strings are named $_REQUEST["variablename"]
- if a $_REQUEST variable does not exist it does NOT error, it just returns blank
*/
// going to write some php variable and $_REQUEST code here
$filter = $_REQUEST["condition"];
if (empty($filter)) {
// if no url condition was passed into page, default to Diabetes
$filter = "Diabetes";
}
// base query
$sql = " SELECT
AVG(Age) AS AverageAge,
MIN(Age) AS LowAge,
MAX(Age) AS HighAge,
COUNT(Name) AS NumberPatients
FROM healthcare_dataset
WHERE MedicalCondition='$filter'
"; // note using $filter variable INSIDE SELECT statement
$results = $mysql->query($sql);
if(!$results) {
echo "SQL error: ". $mysql->error . " running query <hr>" . $sql . "<hr>";
exit();
}
// since only query in the page, and just a single line query (one row) that
// does not need a loop, pre-load the query columns into $currentrow
$currentrow = $results->fetch_assoc();
// dump columns into source code of page to debug / see column names and data
echo "<!--<pre> ";
var_dump($currentrow);
echo "</pre>-->";
?>
<!-- this is a javascript block in the page... NOT php ... but that doesn't mean we
can't choose to output/inject content into it with php -->
<!-- javascript block. setting up variables -->
<script>
// Note that javascript (and jQuery) variables have no symbol in front of the variable name
var condition = "<?= $filter ?>";
var patients = <?= $currentrow["NumberPatients"] ?>;
var highage = <?= $currentrow["HighAge"] ?>;
var lowage = <?= $currentrow["LowAge"] ?>;
var avgage = <?= number_format($currentrow["AverageAge"],2) ?>;
</script>
<style>
.box { width: 30px; height: 15px; position:absolute; font-weight:bold;}
.box2 { width: 100px; height:15px; position:absolute; font-weight: bold;}
#chart { width:400px; height:225px; position:relative;
background-image: url(http://iyawebdev.com/acad274/lecture_examples/healthscreen.png)}
#condition {
left: 141px; top:60px; font-size: 14pt;
}
#patients { left: 199px; top:92px; font-size: 10pt;}
#avgage { left: 145px; top:122px; font-size: 10pt;}
#lowage { left: 143px; top:152px; font-size: 10pt;}
#highage { left: 145px; top:182px; font-size: 10pt;}
</style>
<div id="chart">
<!-- chart emptied of all by boxes -->
<div class="box2" id="condition"></div>
<div class="box" id="patients"></div>
<div class="box" id="avgage"></div>
<div class="box" id="lowage"></div>
<div class="box" id="highage"></div>
</div>
<script src="https://code.jquery.com/jquery-3.7.1.js"
integrity="sha256-eKhayi8LEQwp4NKxN+CfCh+3qOVUtJn3QNZ0TciWLP4="
crossorigin="anonymous"></script>
<script><!-- jQuery block -->
$(document).ready(function(){
// jQuery code
// write variables to div boxes (by id)
$("#condition").text(condition);
$("#patients").text(patients);
$("#highage").text(highage);
$("#lowage").text(lowage);
$("#avgage").text(avgage);
// then go back to php, and put output php values in place of 0s
});
</script>
