What are the best practices for integrating PHP, SQLite, and JavaScript for data visualization purposes?

To integrate PHP, SQLite, and JavaScript for data visualization, you can use PHP to fetch data from SQLite database, encode it as JSON, and pass it to JavaScript for visualization using libraries like Chart.js or D3.js. Here is a simple example of how to achieve this: 

<?php
// Connect to SQLite database
$db = new SQLite3('database.db');

// Fetch data from SQLite
$results = $db->query('SELECT * FROM table');

// Convert data to JSON
$data = array();
while ($row = $results->fetchArray(SQLITE3_ASSOC)) {
    $data[] = $row;
}
$json_data = json_encode($data);
?>

<!DOCTYPE html>
<html>
<head>
    <title>Data Visualization</title>
    <script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
</head>
<body>
    <canvas id="myChart"></canvas>
    <script>
        var jsonData = <?php echo $json_data; ?>;
        var labels = jsonData.map(function(item) {
            return item.label;
        });
        var values = jsonData.map(function(item) {
            return item.value;
        });

        var ctx = document.getElementById('myChart').getContext('2d');
        var myChart = new Chart(ctx, {
            type: 'bar',
            data: {
                labels: labels,
                datasets: [{
                    label: 'Data Visualization',
                    data: values,
                    backgroundColor: 'rgba(54, 162, 235, 0.2)',
                    borderColor: 'rgba(54, 162, 235, 1)',
                    borderWidth: 1
                }]
            },
            options: {
                scales: {
                    yAxes: [{
                        ticks: {
                            beginAtZero: true
                        }
                    }]
                }
            }
        });
    </script>
</body>
</html>

Keywords

PHP SQLite JavaScript data visualization integration

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