The above example shows you how to create BarChart using ChartJs package. In this example, for purpose of chart demonstration only, we do use mock-up data from array. As you can see, the KoolReport's widget in general support dataSource could be DataStore, Process, DataSource or even simple array.
This example shows how to build a basic bar chart with horizontal bar.
<?php
if (session_status() !== PHP_SESSION_ACTIVE) session_start();
require_once "../../../load.koolreport.php";
require_once "MyReport.php";
$report = new MyReport;
$report->run();
?>
<?php
if (isset($_POST['command'])) {
?>
<div id='report_render'>
<?php
$report->render();
?>
</div>
<?php
exit;
}
?>
<?php
if (!isset($_POST['command'])) {
?>
<div id='report_render'>
<?php
$report->render();
?>
</div>
<?php
}
?>
<html>
<head>
<title>
Line Chart
</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
</head>
<body>
<br>
<button id="randomizeData" class="btn">Randomize Data</button>
<button id="addDataset" class="btn">Add Dataset</button>
<button id="removeDataset" class="btn">Remove Dataset</button>
<button id="addData" class="btn">Add Data</button>
<button id="removeData" class="btn">Remove Data</button>
<script>
$(document).ready(function() {
$('#randomizeData').click(function(e) {
e.preventDefault();
$.ajax({
type: "POST",
url: 'run.php',
data: {
command: 'randomizeData',
},
success: function(response) {
$('#report_render').html(response);
}
})
})
$('#addDataset').click(function(e) {
e.preventDefault();
$.ajax({
type: "POST",
url: 'run.php',
data: {
command: 'addDataset'
},
success: function(response) {
$('#report_render').html(response);
}
})
})
$('#removeDataset').click(function(e) {
e.preventDefault();
$.ajax({
type: "POST",
url: 'run.php',
data: {
command: 'removeDataset'
},
success: function(response) {
$('#report_render').html(response);
}
})
})
$('#addData').click(function(e) {
e.preventDefault();
$.ajax({
type: "POST",
url: 'run.php',
data: {
command: 'addData'
},
success: function(response) {
$('#report_render').html(response);
}
})
})
$('#removeData').click(function(e) {
e.preventDefault();
$.ajax({
type: "POST",
url: 'run.php',
data: {
command: 'removeData'
},
success: function(response) {
$('#report_render').html(response);
}
})
})
})
</script>
<div>
<div id='report_render'>
</div>
</div>
</body>
</html><?php
class MyReport extends \koolreport\KoolReport {
}
<div id="report_render">
<?php
function randomScalingFactor()
{
return mt_rand(-100, 100);
}
$rgb = [
'rgb(255, 99, 132)',
'rgb(54, 162, 235)',
'rgb(255, 205, 86)',
'rgb(75, 192, 192)',
'rgb(153, 102, 255)',
'rgb(201, 203, 207)',
'rgb(255, 159, 64)',
];
$rgba = [
'rgba(255, 99, 132, 0.5)',
'rgba(54, 162, 235, 0.5)',
'rgba(255, 205, 86, 0.5)',
'rgba(75, 192, 192, 0.5)',
'rgba(153, 102, 255, 0.5)',
'rgba(201, 203, 207, 0.5)',
'rgba(255, 159, 64, 0.5)',
];
$month = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];
$data = [
['month' => 'January', 'Dataset 1' => randomScalingFactor(), 'Dataset 2' => randomScalingFactor()],
['month' => 'February', 'Dataset 1' => randomScalingFactor(), 'Dataset 2' => randomScalingFactor()],
['month' => 'March', 'Dataset 1' => randomScalingFactor(), 'Dataset 2' => randomScalingFactor()],
['month' => 'April', 'Dataset 1' => randomScalingFactor(), 'Dataset 2' => randomScalingFactor()],
['month' => 'May', 'Dataset 1' => randomScalingFactor(), 'Dataset 2' => randomScalingFactor()],
['month' => 'June', 'Dataset 1' => randomScalingFactor(), 'Dataset 2' => randomScalingFactor()],
['month' => 'July', 'Dataset 1' => randomScalingFactor(), 'Dataset 2' => randomScalingFactor()],
];
$series = array('month');
$seriesString = '';
if (!isset($_POST['command'])) {
$_SESSION["numberOfDataset"] = 2;
$_SESSION['data'] = $data;
for ($i = 1; $i <= $_SESSION['numberOfDataset']; $i++) {
array_push($series, 'Dataset ' . $i);
}
$colorIndex = 0;
foreach ($series as $key => $seri) {
if ($key > 0) {
$series[$seri] = [
'backgroundColor' => $rgba[$colorIndex],
'borderColor' => $rgb[$colorIndex]
];
$colorIndex = ($colorIndex + 1) % count($rgb);
}
}
}
if (isset($_POST['command']) && $_POST['command'] === 'randomizeData') {
foreach ($_SESSION['data'] as &$entry) {
for ($i = 0; $i <= $_SESSION['numberOfDataset']; $i++) {
$entry['Dataset ' . $i] = mt_rand() < 0.2 ? 0 : randomScalingFactor();
}
}
for ($i = 1; $i <= $_SESSION['numberOfDataset']; $i++) {
array_push($series, 'Dataset ' . $i);
}
$colorIndex = 0;
foreach ($series as $key => $seri) {
if ($key > 0) {
$series[$seri] = [
'backgroundColor' => $rgba[$colorIndex],
'borderColor' => $rgb[$colorIndex]
];
$colorIndex = ($colorIndex + 1) % count($rgb);
}
}
}
if (isset($_POST['command']) && $_POST['command'] === 'addDataset') {
$_SESSION['numberOfDataset'] = $_SESSION['numberOfDataset'] + 1;
$seriesString = 'Dataset ' . $_SESSION['numberOfDataset'];
foreach ($_SESSION['data'] as &$entry) {
$entry[$seriesString] = randomScalingFactor();
}
for ($i = 1; $i <= $_SESSION['numberOfDataset']; $i++) {
array_push($series, 'Dataset ' . $i);
}
$colorIndex = 0;
foreach ($series as $key => $seri) {
if ($key > 0) {
$series[$seri] = [
'backgroundColor' => $rgba[$colorIndex],
'borderColor' => $rgb[$colorIndex]
];
$colorIndex = ($colorIndex + 1) % count($rgb);
}
}
}
if (isset($_POST['command']) && $_POST['command'] == 'removeDataset') {
if ($_SESSION['numberOfDataset'] > 0) {
foreach ($_SESSION['data'] as &$item) {
array_splice($item, -1, 1);
}
$_SESSION['numberOfDataset'] = $_SESSION['numberOfDataset'] - 1;
for ($i = 1; $i <= $_SESSION['numberOfDataset']; $i++) {
array_push($series, 'Dataset ' . $i);
}
$colorIndex = 0;
foreach ($series as $key => $seri) {
if ($key > 0) {
$series[$seri] = [
'backgroundColor' => $rgba[$colorIndex],
'borderColor' => $rgb[$colorIndex]
];
$colorIndex = ($colorIndex + 1) % count($rgb);
}
}
}
}
if (isset($_POST['command']) && $_POST['command'] == 'addData') {
$lastEntry = array();
if (count($_SESSION['data']) > 0) {
$lastEntry = end($_SESSION['data']);
} else {
$lastEntry = $data[0];
}
$currentMonth = $lastEntry['month'];
$index = array_search($currentMonth, $month);
$nextMonth = '';
if ($index !== false) {
$nextIndex = ($index + 1) % count($month);
$nextMonth = $month[$nextIndex];
$newData = ['month' => $nextMonth];
for ($i = 1; $i <= $_SESSION['numberOfDataset']; $i++) {
$newData['Dataset ' . $i] = randomScalingFactor();
}
array_push($_SESSION['data'], $newData);
} else {
array_push($_SESSION['data'], $_SESSION['temporaryData']);
}
for ($i = 1; $i <= $_SESSION['numberOfDataset']; $i++) {
array_push($series, 'Dataset ' . $i);
}
$colorIndex = 0;
foreach ($series as $key => $seri) {
if ($key > 0) {
$series[$seri] = [
'backgroundColor' => $rgba[$colorIndex],
'borderColor' => $rgb[$colorIndex]
];
$colorIndex = ($colorIndex + 1) % count($rgb);
}
}
}
if (isset($_POST['command']) && $_POST['command'] == 'removeData') {
array_pop($_SESSION['data']);
for ($i = 1; $i <= $_SESSION['numberOfDataset']; $i++) {
array_push($series, 'Dataset ' . $i);
}
$colorIndex = 0;
foreach ($series as $key => $seri) {
if ($key > 0) {
$series[$seri] = [
'backgroundColor' => $rgba[$colorIndex],
'borderColor' => $rgb[$colorIndex]
];
$colorIndex = ($colorIndex + 1) % count($rgb);
}
}
}
\koolreport\chartjs\BarChart::create(array(
'dataSource' => $_SESSION['data'],
'columns' => $series,
"options" => array(
"responsive" => true,
"title" => array(
"display" => true,
"text" => 'Chart.js Horizontal Bar Chart'
),
"legend" => array(
"position" => 'right'
),
"elements" => array(
"rectangle" => array(
"borderWidth" => 2
)
)
)
));
?>
</div>What People Are Saying
"KoolReport helps me very much in creating data report for my corporate! Keep up your good work!"
--
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--
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--
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