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Help with chart

Daniii

By Daniii
in PHP Coding Help

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Daniii Member

Daniii

Posted
Posted 
<?php
    $url = "myurl";
	$curl = curl_init();
	curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
	curl_setopt($curl, CURLOPT_URL, $url);
	$getdata = curl_exec($curl); 
    $data = json_decode($getdata);
    $users = $data->result[0]->Users;
    $datapoints = array();
    
    foreach($users as $user):
      $dataPoints[] = array(
        'label' => $user->UserObject->UserName,
        'y' => $user->Amount);
    endforeach;
    echo "<pre>";
print_r($dataPoints);
echo "</pre>";
echo json_encode($dataPoints, JSON_FORCE_OBJECT);
?>

<!DOCTYPE HTML>
<div class="container">
  <h2>Chart.js — Pie Chart Demo</h2>
  <div>
    <canvas id="myChart"></canvas>
  </div>
</div>
<script src="https://cdn.jsdelivr.net/npm/chart.js@2.8.0"></script>
<script>
var ctx = document.getElementById("myChart").getContext('2d');
var myChart = new Chart(ctx, {
  type: 'pie',
  data: {
    labels: "{label}",
    datasets: [{
      backgroundColor: [
        "#2ecc71",
        "#3498db",
        "#95a5a6",
        "#9b59b6",
        "#f1c40f",
        "#e74c3c",
        "#34495e"
      ],
      data: <?php echo json_encode($dataPoints, JSON_NUMERIC_CHECK); ?>
    }]
  }
});
</script>
<style>
.container {
  width: 80%;
  margin: 15px auto;
}
</style>

what is wrong? I can no longer see the chart.

Json 

{
  "result": [
    {
      "ID": 1,
      "Users": [
        {
          "UserObject": {
            "UserName": "User1",
            "-": {
              "ID": 1
            },
            "0": "0"
          },
          "User": "User1",
          "Amount": 57654456
        },
        {
          "UserObject": {
            "UserName": "User2",
            "-": {
              "ID": 1
            },
            "0": "0"
          },
          "User": "User2",
          "Amount": 57654456
        },
        {
          "UserObject": {
            "UserName": "User3",
            "-": {
              "ID": 1
            },
            "0": "0"
          },
          "User": "User3",
          "Amount": 57654456
        }
      ],
      "Reached": false,
      "IsActive": true
    }
  ],
  "error": false,
  "version": 1
}

 

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Barand Prolific Member

Barand

Posted
Posted

I tried Googling charts.js to have a look at their API documentation. What I found was nothing like the formats that you appear to be using.

I did manage to get a chart produced using google.visualization api (if that helps)

image.png.1a2e45256c80edb4a2b381e62a6fe62b.png

<?php
$getdata = '
{
  "result": [
    {
      "ID": 1,
      "Users": [
        {
          "UserObject": {
            "UserName": "User1",
            "-": {
              "ID": 1
            },
            "0": "0"
          },
          "User": "User1",
          "Amount": 10
        },
        {
          "UserObject": {
            "UserName": "User2",
            "-": {
              "ID": 1
            },
            "0": "0"
          },
          "User": "User2",
          "Amount": 20
        },
        {
          "UserObject": {
            "UserName": "User3",
            "-": {
              "ID": 1
            },
            "0": "0"
          },
          "User": "User3",
          "Amount": 15
        }
      ],
      "Reached": false,
      "IsActive": true
    }
  ],
  "error": false,
  "version": 1
}
';
    $data = json_decode($getdata);
    $users = $data->result[0]->Users;
    $dataPoints = array( ['User', 'Amount'] );
    
    foreach($users as $user):
      $dataPoints[] = array( $user->User, $user->Amount );
    endforeach;

    $jdata = json_encode($dataPoints);
?>

<!DOCTYPE HTML>
<html>
<head>
<title>Test</title>
<meta http-equiv="content-language" content="en">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.5.0/jquery.min.js"></script>
<script type='text/javascript'>
$().ready(function() {
    google.charts.load('current', {'packages':['corechart']});
    google.charts.setOnLoadCallback(drawChart);

    // Draw the chart and set the chart values
    function drawChart() {
      var dataArray = JSON.parse($("#chart-values").val())  
      var data = google.visualization.arrayToDataTable(dataArray);

      // Optional; add a title and set the width and height of the chart
      var options = {
            'title':'User Amounts', 
            'width':550, 
            'height':400, 
            'slices': { 
                        0: {'color':'#2ecc71' },
                        1: {'color':'#3498db' },
                        2: {'color':'#95a5a6' },
                        3: {'color':'#9b59b6' },
                        4: {'color':'#f1c40f' },
                        5: {'color':'#e74c3c' },
                        6: {'color':'#34495e' }
                      }
            };

      // Display the chart inside the <div> element with id="piechart"
      var chart = new google.visualization.PieChart(document.getElementById('myChart'));
      chart.draw(data, options);
    }
})
</script>
<style>
.container {
  width: 80%;
  margin: 15px auto;
}
</style>
</head>
<body>

<input type='hidden' id='chart-values' value='<?=$jdata?>'>

<div class="container">
  <h2>Pie Chart Demo</h2>
  <div id="myChart"></div>
</div>
</body>
</html>

 

  • Like 2
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Daniii Member

Daniii

Posted
  • Author
Posted

when i paste my url there i get 


Notice: Trying to get property 'result' of non-object in C:\xampp\htdocs\dashboard-master\chart2.php on line 5

Notice: Trying to access array offset on value of type null in C:\xampp\htdocs\dashboard-master\chart2.php on line 5

Notice: Trying to get property 'Users' of non-object in C:\xampp\htdocs\dashboard-master\chart2.php on line 5

Warning: Invalid argument supplied for foreach() in C:\xampp\htdocs\dashboard-master\chart2.php on line 8
Array ( [0] => Array ( [0] => User [1] => Amount ) )

 

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Daniii Member

Daniii

Posted
  • Author
Posted
3 minutes ago, Barand said:

Please define the following terms

  • my url
  • there 
$getdata = "url";

Output: 

[
  {
    "id": 0,
    "moneyamount": 0,
    "donedate": "2020-12-20T18:29:04.509Z",
    "bonus": 0,
    "users": [
      {
        "userObject": {
          "userName": "string",
          "id": 0,
          "spedition": {
            "id": 0,
            "name": "string",
            "shortName": "string",
            "isRealEco": true
          },
          "inSped": true,
          "formatName": "string"
        },
        "user": "string",
        "amount": 0,
        "unit": "string",
        "value": "string",
        "max": 0
      }
    ],
    "ignoredUsers": [
      {
        "userName": "string",
        "id": 0,
        "spedition": {
          "id": 0,
          "name": "string",
          "shortName": "string",
          "isRealEco": true
        },
        "inSped": true,
        "formatName": "string"
      }
    ],
    "type": 0,
    "alrreached": 0,
    "reached": true,
    "isActive": true
  }
]
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