php gets the file extension in url

WBOY
Release: 2016-07-25 08:43:15
Original
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  1. //Get the file extension in the url address
  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 (searched string, to find string, [search starting position] ) Find the position of the last occurrence of the string: if found, return the position of the last occurrence; if not found, return false
  6. $c = substr($a[0], $b+1, 3); //substr(operated String, start position, [end position]) Return part of the string
  7. return $c;
  8. }
  9. echo getFileName($url)."
    ";
  10. //Second method
  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));
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file extension, php, url


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