Practical case analysis of PHP and Vue programming skills in developing brain map functions

Practical case analysis of PHP and Vue programming skills in developing mind map functions

Overview:
Mind Map is a method used to A tool for graphically displaying thinking structures. Many developers use mind maps to organize ideas, plan projects, record notes, etc. This article will take a practical case as an example to introduce how to use PHP and Vue programming skills to develop a simple brain map function.

Case description:
We want to develop a web-based mind map application through which users can create, edit, save and share mind maps. The application has the following functions:

1. Users can create empty mind maps or choose from saved mind map templates;
2. Provides rich node styles, colors, connecting lines, etc. Define options;
3. Realize operations such as dragging, zooming in, copying, and deleting nodes;
4. Support exporting brain maps as pictures or common file formats;
5. Multiple user sharing and collaboration.

Technical architecture:

1. The back-end is developed using PHP, and functions such as addition, deletion, modification, and user login authentication of brain map data are implemented through the framework;
2. The front end uses Vue.js as the development framework to realize the display and interaction of brain maps through components and data binding and other technologies.

Database design:
Our database needs to store user information and brain map data and relationships. The following is a simplified database table design:

1. User table (users):

   • id: user ID
   • username: username
   • password: Password
   • email: Email

2. mindmaps:

   • id: brain Map ID
   • user_id: User ID
   • name: Brain map name
   • data: Brain map data (stored in JSON format)

Back-end implementation:
We implement the back-end interface through the PHP framework to handle operations such as saving, obtaining, updating and deleting brain maps. The following are some code examples:

1. Get the list of user mind maps:

   // 获取用户ID
   $user_id = $_SESSION['user_id'];
   
   // 查询该用户的脑图
   $mindmaps = DB::table('mindmaps')
    ->where('user_id', $user_id)
    ->get();
   
   // 返回脑图列表
   return response()->json($mindmaps);

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2. Create a new mind map:

   // 获取用户ID
   $user_id = $_SESSION['user_id'];
   
   // 获取脑图名称
   $name = $_POST['name'];
   
   // 创建新脑图
   $mindmap = DB::table('mindmaps')->insertGetId([
    'user_id' => $user_id,
    'name' => $name,
    'data' => null
   ]);
   
   // 返回新脑图ID
   return response()->json(['id' => $mindmap]);

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Front-end implementation:
Using Vue.js as the front-end framework, we can realize the display and interaction of brain maps through technologies such as componentization and data binding. The following are some code examples:

1. Mind map display component: MindMap.vue

   <template>
     <div id="mind-map">
    <div class="node" v-for="node in nodes" :key="node.id">
      {{ node.text }}
    </div>
     </div>
   </template>
   
   <script>
   export default {
     props: ['nodes'],
   }
   </script>

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2. Mind map editing component: MindMapEditor.vue

   <template>
     <div id="mind-map-editor">
    <mind-map :nodes="nodes"></mind-map>
    <button @click="save">保存</button>
     </div>
   </template>
   
   <script>
   import MindMap from './MindMap.vue'
   
   export default {
     data() {
    return {
      nodes: []
    }
     },
     methods: {
    save() {
      // 调用后端接口保存脑图数据
      axios.post('/api/mindmaps/' + this.mindmapId, { data: this.nodes })
        .then(response => {
          console.log(response.data)
        })
        .catch(error => {
          console.log(error)
        })
    }
     },
     components: {
    MindMap
     }
   }
   </script>

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Summary:
Through PHP and Vue programming skills, we can implement a simple but fully functional brain mapping application. The backend provides an interface for adding, deleting, modifying, and querying mind map data through the PHP framework, and the front end implements the display and interaction of mind maps through Vue.js. This case can also be extended to support online applications for multi-user sharing and collaboration. I hope this article can help everyone understand the application of PHP and Vue programming skills in the development of brain map functions.

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