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Implementation method of grid layout developed in PHP in WeChat mini program

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2023-06-01 08:48:222077browse

In recent years, WeChat mini programs have become one of the important tools for mobile terminal development, and PHP, as a language commonly used for Web back-end development, has gradually become an indispensable part of mini program development. Among them, grid layout is a commonly used layout method in mini programs. This article will introduce the implementation method of using PHP to develop grid layout for WeChat mini programs.

1. Understand Grid Layout

Grid Layout (Grid Layout) is a layout method based on rows and columns, which can achieve the alignment of various elements such as pictures, text, charts, etc. , making the layout between various elements more flexible. In web development, most modern browsers support Grid layout using CSS. In the WeChat applet, we can use the corresponding CSS properties to implement grid layout.

2. Use PHP to implement grid layout

Using PHP to implement grid layout in WeChat mini programs can make development more efficient and flexible. Here we use PHP as the back-end language, store the layout information in a PHP array, and pass it to the applet through the interface for parsing and rendering.

The following is a PHP code example:

$data = array(
    array('id' => 1, 'name' => '元素1', 'image' => 'image1.jpg'),
    array('id' => 2, 'name' => '元素2', 'image' => 'image2.jpg'),
    array('id' => 3, 'name' => '元素3', 'image' => 'image3.jpg'),
    array('id' => 4, 'name' => '元素4', 'image' => 'image4.jpg'),
    array('id' => 5, 'name' => '元素5', 'image' => 'image5.jpg'),
    array('id' => 6, 'name' => '元素6', 'image' => 'image6.jpg'),
    array('id' => 7, 'name' => '元素7', 'image' => 'image7.jpg'),
    array('id' => 8, 'name' => '元素8', 'image' => 'image8.jpg')
);

echo json_encode($data);

This code stores the element information in a two-dimensional array and returns it in JSON format using the echo function.

3. Using grid layout in the mini program

After passing the data to the mini program through the above PHP code, we need to use the corresponding CSS properties in the mini program to implement the grid layout. The following is a code example in the mini program:

<!-- wxml代码 -->
<view class="grid">
  <block wx:for="{{items}}" wx:key="id">
    <view class="grid-item">
      <image src="{{item.image}}"></image>
      <text>{{item.name}}</text>
    </view>
  </block>
</view>

/* wxss代码 */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  grid-gap: 10px;
}

.grid-item {
  background-color: #ddd;
  padding: 10px;
  text-align: center;
}

In this code, we use the wx:for directive to loop rendering elements, use the display: grid attribute to implement grid layout, and use grid-template-columns Properties specify the number and size of grid columns, and the grid-gap property is used to add gaps between grid items.

In addition, we also use the minmax() function, which can set the minimum and maximum values ​​of the grid items at the same time. When the grid size is less than the minimum value, the grid items will be reduced; when the grid size is greater than the maximum value, the grid items will automatically expand. This enables adaptive grid layout.

4. Summary

Grid layout developed using PHP can realize adaptive and flexible layout in mini programs, making mini program development more efficient and convenient. In the actual development process, we can adjust the element information in the PHP array and the settings of CSS properties as needed to adapt to different needs.

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