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Kevin Schroder:
What SSL $_SERVER variables are available in PHP
September 02, 2013 @ 09:24:04

Kevin Schroeder has shared the results of a question he wanted answered when it came to PHP with a HTTPS (SSL) connection - which of the $_SERVER variables are available.

I found myself wondering what HTTPS variables were available in the $_SERVER variable today and didn't find a specific list (and didn't have mod_ssl installed). So as a public service, here is what my server says.

Thanks to some of the additional handling and information the SSL connection provides to PHP, there's several additional variables including things like:

  • SSL_PROTOCOL
  • HTTPS (set to "on")
  • SSL_COMPRESS_METHOD
  • SSL_CLIENT_VERIFY
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ssl server superglobal variable

Link: http://www.eschrade.com/page/what-ssl-_server-variables-are-available-in-php/

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