Php obtains the file extension in the url.

Source: Internet
Author: User
Php obtains the file extension in the url.

  1. // Retrieve the file extension in the url
  2. $ Url = "http://sdk.tools.sinaapp.com/index.php? Appname = beipiao & version = 1 ";
  3. Function getFileName ($ url ){
  4. $ A = explode ('? ', $ Url );
  5. $ B = strrpos ($ a [0], '. '); // strrpos (string to be searched, [start position to search]) locate the last occurrence of a string: returns the last occurrence of a string; if not found, false is returned.
  6. $ C = substr ($ a [0], $ B + 1, 3); // substr (operated string, start position, [end position]) returns part of the string
  7. Return $ c;
  8. }
  9. Echo getFileName ($ url )."
    ";
  10. // Method 2
  11. Function getFileNameTwo ($ url ){
  12. $ A = parse_url ($ url, PHP_URL_PATH); // parse_url () parses the url and returns its components
  13. $ B = pathinfo ($ a, PATHINFO_EXTENSION); // pathinfo ()
  14. Return $ B;
  15. }
  16. Print_r (getFileNameTwo ($ url ));


File extension, php, url

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