How to communicate data from my bank with graph (Highcharts)?

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How to communicate data from my bank with graph (Highcharts)?

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#1 by (0 votes)

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I'm new to php, I'm trying to stock my chart with my bank information.

php mysql highcharts

asked by anonymous 09.04.2018 / 15:01

1 answer

In what class does jUnit implement its rules? Bring results from a radio field (array)

score 0 · Accepted Answer

I made some adjustments to your code:

<!DOCTYPE HTML>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <title>Highcharts Example</title>

        <style type="text/css">

        </style>
    </head>
    <body>
  <?php

    include 'conexao.php';
    $resTotal = $con->query("SELECT * FROM aluno");
    $cnt = $resTotal->rowCount();

    $resProf1 = $con->query("SELECT * FROM aluno where professor='lobato'");
    $cntProf1 = $resProf1->rowCount();
    $totalProf1 = $cntProf1 * 100 /$cnt;

    $resProf2= $con->query("SELECT * FROM aluno where professor='willys'");
    $cntProf2= $resProf2->rowCount();
    $totalProf2 = $cntProf2 * 100 /$cnt;


    $resProf3= $con->query("SELECT * FROM aluno where professor='allan'");
    $cntProf3 = $resProf3->rowCount();
    $totalProf3 = $cntProf3 * 100 /$cnt;

    while($filaProf1 = $resProf1->fetch(PDO::FETCH_ASSOC)){
      $prof1 = "{ name: '".$filaProf1['professor']."', y:".$totalProf1."},";
    }
    while($filaProf2 = $resProf2->fetch(PDO::FETCH_ASSOC)){
      $prof2 = "{ name: '".$filaProf2['professor']."', y:".$totalProf2."},";
    }
    while($filaProf3 = $resProf3->fetch(PDO::FETCH_ASSOC)){
      $prof3 = "{ name: '".$filaProf3['professor']."', y:".$totalProf3."},";
    }

    var_dump($prof1);
   ?>
<script src="highcharts/code/highcharts.js"></script>
<script src="highcharts/code/modules/exporting.js"></script>

<div id="container" style="min-width: 310px; height: 400px; max-width: 600px; margin: 0 auto"></div>



        <script type="text/javascript">

Highcharts.chart('container', {
    chart: {
        plotBackgroundColor: null,
        plotBorderWidth: null,
        plotShadow: false,
        type: 'pie'
    },
    title: {
        text: 'Browser market shares January, 2015 to May, 2015'
    },
    tooltip: {
        pointFormat: '{series.name}: <b>{point.percentage:.1f}%</b>'
    },
    plotOptions: {
        pie: {
            allowPointSelect: true,
            cursor: 'pointer',
            dataLabels: {
                enabled: true,
                format: '<b>{point.name}</b>: {point.percentage:.1f} %',
                style: {
                    color: (Highcharts.theme && Highcharts.theme.contrastTextColor) || 'black'
                }
            }
        }
    },
    series: [{
        name: 'Brands',
        colorByPoint: true,
        data: [
          <?php
            echo isset($prof1)? $prof1 : null;
            echo isset($prof2)? $prof2 : null;
            echo isset($prof3)? $prof3 : null;
          ?>
        ]
    }]
});
        </script>
    </body>
</html>

I changed the fetch_array by fetch(PDO::FETCH_ASSOC) gave a var_dump of the result and it seems that it is ok.

I've also changed the line:

series: [{
        name: 'Brands',
        colorByPoint: true,
        data: [
          <?
            echo

I was missing <?php and added the following validation:

<?php
            echo isset($prof1)? $prof1 : null;
            echo isset($prof2)? $prof2 : null;
            echo isset($prof3)? $prof3 : null;
          ?>

This ternary validates if the variable exists in the scope, because if it does not find any results for $prof2 or $prof1 or $prof3 the line that was could cause error in php, trying to use a variable that does not exist , because it is declared only within the while, that is, only if it finds any records in the query.

I saw here that you have an import error of the graphics file, I do not know if you are using files from your machine, if the problem persists send the import files, then we can help you better.

I hope I have helped:)

obs: I considered the following bank:

CREATE TABLE 'dbpesquisa'.'aluno' (
  'idaluno' INT NOT NULL AUTO_INCREMENT,
  'nome' VARCHAR(45) NULL,
  'sobrenome' VARCHAR(45) NULL,
  'curso' VARCHAR(45) NULL,
  'professor' VARCHAR(45) NULL,
  PRIMARY KEY ('idaluno'));