143 PHP Interface

PHP Write App interface

PHP interface

• Special abstract Classes
• interface/implements keywords
• All abstract methods that implement interface interfaces must be implemented

App interface

Defined

• has an interface address that allows the client to send a request (Http://xxx/api.php?format=xml)
• Have interface file (api.php), Get interface logic
• Interface data,

App Communications

Client--(HTTP request to interface address), Serivice

Different from the B/S architecture

• The address is encapsulated in the app (different from the browser address)
• The client returns XML or JSON data (different from HTML)

XML (Extensible Markup Language) and JSON (JavaScript object notation)

Cross-platform, language.

• Readability--XML
• Easy-to-generate JSON
  

  Json_encode vs 4 ways to create XML
  

  • New DomDocument ()
  • Stitching strings
  • Xmlwrite
  • SimpleXml

• Efficiency--JSON

Encapsulating data Interface Methods

Json

Json_encode only accepts Utf-8
transcoding iconv ("UTF-8", "GBK", $data)

Xml

Header ("Content-type:text/xml");

DomDocument
* createelement
* AppendChild

Standard format for communication data

• Status codes (200 400)
• Prompt message (login successful)
• Data

Core technology

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The above describes the 143 PHP interface, including the aspects of the content, I hope that the PHP tutorial interested in a friend helpful.

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