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PHP tiny url encode and decode functions

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The first function make short urls.
The second function decode a short url with CURL. It gets the http header of the short url page. If the header contains a "Location:" header, then it's a redirect, and the decoded url is the url in the "Location" header string, here is the code:

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  1. function doShortURL($url) {
  2. 	$short_url= file_get_contents('http://tinyurl.com/api-create.php?url=' . urlencode( $url ) );
  3. 	return $short_url;
  4. }
  5.  
  6.  
  7. function doShortURLDecode($url) {
  8. 	$ch = @curl_init($url);
  9. 	@curl_setopt($ch, CURLOPT_HEADER, TRUE);
  10. 	@curl_setopt($ch, CURLOPT_NOBODY, TRUE);
  11. 	@curl_setopt($ch, CURLOPT_FOLLOWLOCATION, FALSE);
  12. 	@curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
  13. 	$response = @curl_exec($ch);
  14. 	preg_match('/Location: (.*)\n/', $response, $a);
  15. 	if (!isset($a[1])) return $url;
  16. 	return $a[1];
  17. }

URL: http://www.barattalo.it/2009/12/29/tiny-url-encode-and-decode-with-php/

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