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Found 1 result

  1. i want to build a bar chart with chartJS and database mysql with two different query, but bar chart not showing. can anyone help me to correct the code? this my query and javascript: <?php $a = mysqli_query("select count(a) as total1 from tbl"); $b = mysqli_query("select count(b) as total2 from tbl"); ?> <body> <div> <canvas id="chart"></canvas> </div> <script> var ctx = document.getElementById("chart"); var chartdata = { labels: 'CHART', datasets: [{ label: "A", data: [<?php while ($data1 = mysqli_fetch_array($a)) {echo '"''.$data1['total1'].'",';}?>], backgroundColor: "#000000" },{ data: [<?php while ($data2 = mysqli_fetch_array($b)) {echo '"''.$data2['total2'].'",';}?>], backgroundColor: "#ffffff" }] }; var chart = new Chart(ctx, { type: 'bar', data: chartdata }); </script> </body>
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