143 php interface

php Write app interface

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php interface

• Special abstract class
• interface / implements keyword
• implement interface All abstract methods of the interface must be implemented

app interface

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definition

• There is an interface address to allow the client to send a request (http://xxx/api.php?format=xml)
• There is an interface file (api.php) to obtain the interface logic
• interface data,

app communication

client -> (http request to interface address) -> serivice

The difference from b/s architecture

• The address is encapsulated in the app (different from the browser address visible)
• The client returns xml Or json data (different from html)

xml (extensible markup language) and json (JavaScript object notation)

cross platforms and languages.

• Readability->
SimpleXml
• 
  

  
  Efficiency-> json

  • encapsulated data interface method
  • json
  • json_encode only accepts utf-8
  • Transcode iconv("UTF-8","GBK",$data)

  xml
• header("Content-Type: text/xml");

DomDocument

* createElement

* appendChild

standard format of communication data

status code (200 400)

prompt information (login successful)

data

core technology

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• The above introduces the 143 php interface, including the relevant content. I hope it will be helpful to friends who are interested in PHP tutorials.