I have been working this script trying to pass PHP loop to JSON ( I Think I have this figured out. then using the JSON result to generate a line chart using chart.js.
JSON script that I am trying to pass to chart.
<?php
echo $_SESSION['amort_JSON'];
?>
Result from echo above:
[{"periodic_pmt":"2","principle_balance":416997.37661705,"principle_paid":0,"ttl_principle_paid":1002.6233829502,"interest_paid":0,"ttl_interest_paid":866.83015878773},{"periodic_pmt":3,"principle_balance":416600.29804453,"principle_paid":538.02630958206,"ttl_principle_paid":1540.6496925323,"interest_paid":396.7004612869,"ttl_interest_paid":1263.5306200746},{"periodic_pmt":4,"principle_balance":416203.59758324,"principle_paid":538.40406076641,"ttl_principle_paid":2079.0537532987,"interest_paid":396.32271010256,"ttl_interest_paid":1659.8533301772},{"periodic_pmt":5,"principle_balance":415807.27487314,"principle_paid":538.78145224369,"ttl_principle_paid":2617.8352055424,"interest_paid":395.94531862527,"ttl_interest_paid":2055.7986488025},{"periodic_pmt":6,"principle_balance":415411.32955451,"principle_paid":539.15848435644,"ttl_principle_paid":3156.9936898988,"interest_paid":395.56828651252,"ttl_interest_paid":2451.366935315}]
Chart Script (Not working): chart shows but is blank.
<body>
<canvas id="myChart" width="100" height="100"></canvas>
<script>
var amort_array = <?php echo json_encode($_SESSION['amort_JSON']);?>;
var data = JSON.parse(amort_array);
var periodic_pmt = data.periodic_pmt;
var principle_balance = data.principle_balance;
var ctx = document.getElementById("myChart");
var myChart = new Chart(ctx, {
type: 'line',
data: {
labels: ['periodic_pmt'],
datasets: [
{
type: 'line',
label: 'Line Component',
data: ['principle_balance'],
}
]
},
options: {
scales: {
yAxes: [{
ticks: {
beginAtZero: true
}
}]
},
elements: {
line: {
fill: false
}
}
}
});
</script>
</body>
</div>