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PHP gets the code of the current URL and domain name

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Release: 2016-07-25 09:04:35
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  1. echo SERVER['SERVER_NAME'];//Get the source URL, that is, click to go to the previous page URL of this page
  2. echo SERVER["HTTP_REFERER"];
  3. SERVER['REQUEST_URI']; //Get the suffix of the current domain name
  4. SERVER['HTTP_HOST'];//Get the current domain name
  5. dirname(__FILE__);//Get the physical path of the current file
  6. dirname(__FILE__)."/../";//Get The upper level physical path of the current file
  7. ?>
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