When I use text in my call the report displays without issue.
*var data = google.visualization.arrayToDataTable([['Quarter', 'Current
Enrollment','SBHC Enrollment','Patients Seen'],['Quarter
1',1500,800,600],['Quarter 2',1450,840,700],*[*'Quarter 3'*
,1480,920,800]],false);
But when I use a variable which has the exact same text I get the following
error and a blank screen.
*Uncaught (in promise) Error: Column header row must be an array.*
The variable is an array as I first parse it to text, clean off the ends
(white space) and then put it into an array. I test the array (is_array)
and all is well. I output the array to the console. I've even copied the
console output and pasted it back into the arrayToDataTable and it works
fine so I am at a loss for why this is not working.
Full code below:
<!DOCTYPE html>
*<?php*
*// ENROLLMENT BY YEAR*
*include* *'../header.php'*;
*include* *'../pdo.php'*;
$siteid = $_GET[*'siteid'*];
$year = $_GET[*'year'*];
$year = date(*"Y"*);
$stmt = $pdo->prepare(*"select operatorid from sites where id = ?"*);
$stmt->execute([$siteid]);
$operatorid = $stmt->fetchColumn();
$count= $stmt->rowCount();
$stmt = $pdo->prepare(*"SELECT concat('Quarter ', quarter) as quarter,
CONVERT(currentenrollment,UNSIGNED INTEGER) AS
currentenrollment,CONVERT(currentpatients,UNSIGNED INTEGER) AS
currentpatients, CO*$
$stmt->execute([$siteid,$year]);
*?>*
<html>
<head>
<title>Enrollment</title>
<script type=*"text/javascript"* src=*"loder.js"*></script>
<script type=*"text/javascript"*>
google.load(*'visualization'*, *'1'*, {*'packages'*:[*'corechart'*]});
google.setOnLoadCallback(drawChart);
*function* drawChart() {
var data = *new* google.visualization.DataTable();
var jsonData = $.ajax({
url: *"getEnrollmentData.php"*,
data: {site:*<?php* *echo* $siteid*?>*,year:*<?php* *echo* $year*?>*} ,
dataType: *"json"*,
async: false
}).responseText;
mystring = jsonData.trim();
mystring = mystring.substr(1);
mystring = mystring.substring(0, mystring.length - 1);
var myarray = *new* Array(mystring);
console.log(*"'"+myarray+"'"*);
// The line below WORKS
*//var data = new google.visualization.arrayToDataTable([['Quarter',
'Current Enrollment','SBHC Enrollment','Patients Seen'],['Quarter
1',1500,800,600],['Quarter 2',1450,840,700],*
[*'Quarter 3'*,1480,920,800]],false);
// This line DOES NOT even though the data is the same as above.
var data = *new* google.visualization.arrayToDataTable([myarray]);
var options = {
chart: {
title: *'Enrollment'*,
subtitle: *'By Year'*,
legend: { position: *'bottom'* },
vAxis: {title: *'Quarter'*}
}
}
var chart = *new* google.visualization.ColumnChart(document.
getElementById(*'areachart'*));
chart.draw(data, options);
}
</script>
</head>
<body>
<div id=*"areachart"* style=*"width: 1300px; height: 800px"*></div>
<div style=*"padding-left:300px"*>
Year 
<select name=*"cars"* id=*"year"*>
*<?php*
$stmt = $pdo->prepare(*"select distinct year from reportmedical where
siteid = ? order by year desc"*);
$stmt->execute([$siteid]);
*foreach* ($stmt *as* $row) {
*echo* *"<option value="* . $row[*'year'*] . *">"* . $row[*'year'*] .
*"</option>"*;
}
*?>*
</select>
</div>
</body>
</html>
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