jQuery AutoComplete is a set of small input drop-down prompt plug-ins developed on the basis of jQuery. This is its PHP application example. Most of its functions are similar to HTML format web pages. Here are some added contents that require the cooperation of PHp programs. It not only There is an input prompt function, and the example itself is also part of Ajax practice, such as popping up an input box within the layer, combining lightBox image display, etc. The overall effect is really good.