php与MySQL与echart综合使用

http://www.yinghualuowu.com/php/echart.html

创建table sex 有name num

<?php

    ini_set('display_errors',1);            //错误信息

    ini_set('display_startup_errors',1);    //php启动错误信息

    error_reporting(-1);

    ini_set('error_log', dirname(__FILE__) . '/error3_log.txt');//打印出所有的 错误信息

    require("config.php");

      $conn=mysqli_connect($mysql_server_name,$mysql_username,$mysql_password) or die("error connecting");

      mysqli_query($conn,'set names utf8');

      mysqli_select_db($conn,$mysql_database);

      $result = mysqli_query($conn,"select * from sex");

      $data="";

      $array= array();

      class User{

        public $name;

        public $num;

      }

     while($row=mysqli_fetch_array($result,MYSQLI_ASSOC)){

        // printf ("%s : %s",$row["name"],$row["num"]);

         $user=new User();

         $user->name=$row['name'];

         $user->num=$row['num'];

         $array[]=$user;

     }

    $data=json_encode($array);

    echo $data;

?>

这样，我们就创建了一个json文件

<!doctype html>

<html>

<head>

<meta charset="utf-8">

<title>无标题文档</title>

<script src="../js/echarts.min.js"></script>

<script src="https://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>

</head>

<body>

<div id="main" style="height:400px"></div>

<script type="text/javascript">

              var  myChart = echarts.init(document.getElementById('main'));

              var arr1=[],arr2=[];

              function arrTest(){

                $.ajax({

                  type:"post",

                  url:"echart.php",

                  dataType:"json",

                  async:false,

                  data:{},

                  success:function(result){

                    if (result){

                      for (var i = 0; i < result.length; i++) {

                          arr1.push(result[i].name);

                          arr2.push(result[i].num);

                      }

                    }

                  },

                error:function(errorMsg) {

                    alert("数据读取失败");

                }

                  })

                return arr1,arr2;

              }

              arrTest();

                console.log(arr1[0]);

              var  option = {

                    tooltip: {

                        show: true

                    },

                    legend: {

                       data:['num']

                    },

                    xAxis : [

                        {

                            type : 'category',

                            data : arr1

                        }

                    ],

                    yAxis : [

                        {

                            type : 'value'

                        }

                    ],

                    series : [

                        {

                            "name":"num",

                            "type":"bar",

                            "data":arr2

                        }

                    ]

                };

                myChart.setOption(option);

    </script>

</body>

</html>

巴特西

php与MySQL与echart综合使用

最新文章

热门文章