Chart.js - Getting data from database using mysql and php

Question

I\'m trying to convert the static data to using database results. I\'ll be using MySQL and PHP.

Example Code:

Answer 1

This is based on the answer above with a couple of changes.

php:

include 'db.php';
$query = "SELECT month, COUNT(*) count FROM customer WHERE month='march' GROUP BY month";

if ($stmt = $conn->prepare($query)) {
    $stmt->execute();
    $stmt->bind_result($month, $count);            

    $labels = array();
    $data = array();

    while ($stmt->fetch()) {
        $labels[] = $month;
        $data[] = $count;
    }
        $stmt->close();
}

$datasets = array('label'=>"timer",'data'=> $data);
$data = array('labels'=>$labels, 'datasets'=> array($datasets));

echo json_encode($data);

I had to use JSON.pare() on the passed-in array.

Javascript:

$.ajax({
    type: 'POST',
    url: 'api.php ',
    datatype: 'json',
    success: function (result) {
        var ctx = document.getElementById("chart").getContext("2d");
        var mychart = new Chart(ctx,
        {
            type: 'bar',
            data: JSON.parse(result),
            options: {
                scales: {
                    yAxes: [{
                        ticks: {
                            beginAtZero: true
                        }
                    }]
                }
            }
        })
    }
})

html: