Protocols of PHP

Protocols are set of instructions transfer the data from one page to another page. Protocols are mainly divided into two types. they are,
1) State full protocol:
2) State less protocol

  1. State full protocol: 
    This protocol can maintain state of application, means they remember all previous request and response value in current request. In windows application we are using this protocols
    Example: TCP/IP, Fttp
  2. State less protocol:
    This protocols cannot maintain the state of application, means they do not carry previous data into current page. In web applications we are using the protocols because they don’t carry any previous data into current request so the performance is very fast.
    Example: http, HTTP, etc
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