त्रुटि फेंक दी गई है क्योंकि पहले कॉलम में मान वास्तविक होना चाहिए date
मूल्य।
बदलने का प्रयास करें...
{"c":[{"v":"04-10-2015"},{"v":0.4}]}
साथ...
{"c":[{"v":new Date("10/04/2015")},{"v":0.4}]}
उपयोग...
$date1 = date_create_from_format('Y-m-d H:i:s', $row['Date']);
$date2 = "new Date(\"".date("m",$date1)."/".date("d",$date1)."/".date("Y",$date1)."\")";
$temp[] = array('v' => (string) $date2);
google.charts.load('current', {
packages: ['corechart'],
callback: drawChart
});
function drawChart() {
var json = {
"cols":[
{"label":"Reading Date","type":"date"},
{"label":"Cl Reading(mg\/l) ","type":"number"}
],
"rows":[
{"c":[{"v":new Date("10/04/2015")},{"v":0.4}]},
{"c":[{"v":new Date("11/04/2015")},{"v":0.45}]},
{"c":[{"v":new Date("12/04/2015")},{"v":0.9}]},
{"c":[{"v":new Date("01/04/2016")},{"v":0.5}]},
{"c":[{"v":new Date("02/04/2016")},{"v":0.43}]},
{"c":[{"v":new Date("02/18/2016")},{"v":0.6}]}
]
}
var data = new google.visualization.DataTable(json);
var chart = new google.visualization.LineChart(document.getElementById('chart_div'));
chart.draw(data, {});
}
<script src="https://www.gstatic.com/charts/loader.js"></script>
<div id="chart_div"></div>