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1 FAQ tagged "client ip address"

• How to determine or retrieve visitor’s IP address using PHP

  Q. How do I determine or retrieve visitor’s IP address using PHP server side programming?
  A. Use following enviorment variable to get visitor’s IP address:
  No Proxy detection
  => REMOTE_ADDR - Remote client IP address
  With Proxy detection
  => HTTP_X_FORWARDED_FOR - Get Proxy server IP
  PHP getenv() function
  => Use php getenv() function to read the value of the environment. [...]

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