PHP Generate Dynamic WAP page (turn one)

Dynamic | page WAP (Wireless Communication Protocol) is an open global standard for communication between digital mobile phones, personal handheld devices (PDAs, etc.) and computers. Because the static WAP page can not satisfy the user's personalized service request in many aspects, it has a wide application value and high commercial value to produce dynamic WML pages through the WAP server-side language.

WAP application architecture is very similar to the Internet, a typical WAP application request is as follows: first, mobile terminals with WAP user agents (WAP phones, etc.) wirelessly send WAP service requests to a Web site via an Micro Browser. This request is intercepted by WAP gateway, encode the content of the information to reduce the traffic of network data, Convert WAP protocol to HTTP protocol as needed, and then transfer the processing request to the corresponding WAP server. On the WAP server side, according to the nature of the page extension, the requested page is exported directly or by the server-side script, and then the user is passed back through the gateway.

From the above WAP application process, we can see that the process of generating dynamic WAP pages is very similar to that of dynamically generating web pages. However, since the WML language used in WAP applications originates from the strict syntax of XML, the required output format must be exported according to the specification of WAP Web pages. At the same time, because of the application scope of WAP protocol, the level of software and hardware of mobile client, the size of each output page, image format and capacity are limited. Let's take the PHP scripting language for example to see how to dynamically output a WAP page.