Tiny url encode and decode with PHP

The first functions make short urls using tinyurl.com service. It’s a very popular function on the web, you can find it in a lot of files, and it’s always the same:

function doShortURL($url) {
	$short_url= file_get_contents('http://tinyurl.com/api-create.php?url=' . urlencode( $url ) );
	return $short_url;

The second function decode a short url in a simple way: I’ve used CURL to get 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:

function doShortURLDecode($url) {
	$ch = @curl_init($url);
	@curl_setopt($ch, CURLOPT_HEADER, TRUE);
	@curl_setopt($ch, CURLOPT_NOBODY, TRUE);
	$response = @curl_exec($ch);
	preg_match('/Location: (.*)\n/', $response, $a);
	if (!isset($a[1])) return $url;
	return $a[1];

These functions are included in the Mini Bots Class.

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