How to implement mobile-friendly statistical charts through PHP and Vue.js

How to implement mobile-friendly statistical charts through PHP and Vue.js

With the popularity of mobile terminals, users' demand for data visualization is getting higher and higher. Statistical charts not only visually display data, but also help users better understand and analyze the data. In this article, we will introduce how to use PHP and Vue.js to implement mobile-friendly statistical charts.

1. Preparation
   Before you start, you need to make sure that you have installed PHP and Vue.js and have a certain understanding of them. If you haven't installed it yet, you can refer to the official documentation to install and learn.
2. Back-end data preparation
   First, you need to prepare some back-end data for front-end use. In PHP, data can be obtained through database queries or API requests. In this article, it is assumed that the following data has been obtained through PHP:

// 数据库查询示例
$data = [
    ['name' => 'A', 'value' => '100'],
    ['name' => 'B', 'value' => '200'],
    ['name' => 'C', 'value' => '150'],
];

3. Front-end partial implementation
   Next, you need to use Vue.js on the front-end to display statistical charts. In Vue.js, you can use third-party libraries to implement various types of charts, such as ECharts, Chart.js, etc. In this article, ECharts is used as an example to display histograms.

First, introduce the ECharts library into the Vue component:

import echarts from 'echarts';

Then, define a component and initialize the chart in the mounted hook function:

export default {
    mounted() {
        this.initChart();
    },
    methods: {
        initChart() {
            const chartDom = this.$refs.chart;
            const chart = echarts.init(chartDom);
            
            // 配置图表
            const option = {
                xAxis: {
                    type: 'category',
                    data: this.data.map(item => item.name),
                },
                yAxis: {
                    type: 'value',
                },
                series: [
                    {
                        data: this.data.map(item => item.value),
                        type: 'bar',
                    },
                ],
            };
            
            // 渲染图表
            chart.setOption(option);
        },
    },
    props: ['data'],
};

In the above code, the chart is initialized through the mounted hook function, and the ECharts API is used in the initChart method to configure and render the chart.

4. Front-end and back-end data interaction
   Next, the data obtained by the back-end needs to be passed to the front-end component. Data can be passed to the Vue component through interface requests or directly in the page. In this article, it is assumed that data has been passed to the data property of the Vue component.

<template>
    <div ref="chart" style="width: 100%; height: 300px;"></div>
</template>

<script>
    import echarts from 'echarts';
    
    export default {
        mounted() {
            this.initChart();
        },
        methods: {
            initChart() {
                const chartDom = this.$refs.chart;
                const chart = echarts.init(chartDom);
                
                // 配置图表
                const option = {
                    xAxis: {
                        type: 'category',
                        data: this.data.map(item => item.name),
                    },
                    yAxis: {
                        type: 'value',
                    },
                    series: [
                        {
                            data: this.data.map(item => item.value),
                            type: 'bar',
                        },
                    ],
                };
                
                // 渲染图表
                chart.setOption(option);
            },
        },
        props: ['data'],
    };
</script>

In the above code, by introducing the container and components of ECharts in the <template> tag, use it in the <script> tag Get the data to configure the chart.

5. Mobile Adaptation
   Finally, in order to make the chart more friendly when displayed on the mobile terminal, you can use CSS media queries to adjust the width and height of the chart to adapt to different screen sizes.

<template>
    <div ref="chart" class="chart-container"></div>
</template>

<style>
    .chart-container {
        width: 100%;
        height: 300px;
    }
    
    @media (max-width: 768px) {
        .chart-container {
            height: 200px;
        }
    }
    
    @media (max-width: 480px) {
        .chart-container {
            height: 150px;
        }
    }
</style>

In the above code, CSS media queries are used to set the height of the chart container for different device sizes.

Through the above steps, you can use PHP and Vue.js to implement mobile-friendly statistical charts. By using third-party libraries such as ECharts, various types of charts can be flexibly implemented to help users better display and analyze data.

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