How to improve the access speed of PHP website through lazy loading?
Lazy Loading is a common optimization technology that can improve website access speed, reduce unnecessary resource loading, and improve user experience. In PHP website development, lazy loading is usually used to delay loading of images, videos, scripts and other resources.
This article will introduce how to improve the access speed of PHP website through lazy loading, and demonstrate it through code examples.
Lazy loading usually requires the help of plug-in library. Currently, there are many excellent lazy loading libraries to choose from, such as Lazy Load, Unveil.js, etc. These plug-in libraries can be introduced through npm or CDN, which is convenient and fast.
The following is a sample code that uses the Lazy Load plug-in library to implement lazy loading of images:
In the above sample code, we added the data-src attribute, and assign the real address of the image to data-src. At the same time, we also added the class attribute to specify the lazy loading style.
In the Copy after login
In the above sample code, we first added the tag preload="none"Attribute to specify that the video is not automatically preloaded. Then, we listened to the page scroll event in the
