PHP implements page scrolling skills in WeChat applet

In recent years, WeChat mini programs have become an indispensable part of people’s lives. As technology continues to update, more and more developers are beginning to use various techniques to implement better mini programs. Among them, page scrolling technique is one of them.

In WeChat mini programs, page scrolling techniques can achieve a smoother user experience and improve the overall quality of the mini program. In the process of implementing page scrolling techniques, PHP can also play a great role. The following is a detailed introduction on how to use PHP to implement page scrolling techniques in WeChat mini programs.

1. What is page scrolling skill

In WeChat mini program, page scrolling skill means that when the user slides the mini program page, some special effects can be achieved, such as page Follow finger swipes, parallax effects, load more, and more.

2. Scroll implementation skills in PHP

1. Automatic sliding of the scroll bar

Automatic sliding of the scroll bar means that the page automatically scrolls to a specific position or Regional skills. This effect can be achieved through PHP jump. For example:

header("location:http://www.baidu.com");
exit;

The above PHP code can realize automatic page jump in the mini program operate.

2. The parallax effect of the page

The parallax effect refers to the speed difference between the background and the foreground during the scrolling process of the page, thereby creating a parallax feeling effect. This effect can be achieved through PHP CSS code. For example:

background-attachment: fixed;
background-position: center center;
background-repeat: no-repeat;
background-size: cover;
min-width : 100%;
overflow: hidden;
display: table;
height: 100vh;

The above code achieves a smooth parallax effect by setting a special style of the background image.

3. Loading more of the page

Loading more refers to the technique of loading more content by scrolling the page. You can set specific parameters for paginated loading through PHP code, and then trigger the page to jump to the next page when scrolling to the bottom. For example:

//Get the current page number
$page = $_GET['page'];

//How many items to display on each page
$pagesize = 10;

//Get data based on page number
$sql = "select * from user limit ".$page*$pagesize.",".$pagesize;

//How many records are there in total? Data
$total_sql = "select count(*) from user";
$total_result = mysql_fetch_array(mysql_query($total_sql));
$total = $total_result['count(*)'];

//Total number of pages
$total_page = ceil($total/$pagesize);

//Previous page and next page
$prev = $page-1 ;
$next = $page 1;

The above code implements a simple loading more operation by fetching data from the database and calculating paging.

3. Summary

The above is an introduction to how to use PHP to implement page scrolling techniques in WeChat mini programs. Although the scrolling technique seems complicated, as long as we master some basic PHP knowledge, we can still achieve these effects through simple code. If you want to create a better WeChat mini program, then you might as well try these techniques!

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