PHP obtains the real address instance to jump. Now there are a lot of short Web site applications, click to jump to shorten the previous web site, then today let's take a look, PHP how to get short Web site jump to the previous web site, in fact, is also very simple, now there are a lot of short Web site applications, click to jump to shorten the previous web site, then today let's take a look, PHP how to get short Web site jump to the previous web site, in fact, is also very simple, the get_headers function of php is used,
Get Response Headers, and then analyze it slowly.
Specific Implementation methods are provided:
| The code is as follows: |
|
$ Header = get_headers ($ url, 1 );
If (strpos ($ header [0], '000000') | strpos ($ header [0], '000000 ′)){
If (is_array ($ header ['location']) {
Return $ header ['location'] [count ($ header ['location'])-1];
} Else {
Return $ header ['location'];
}
} Else {
Return $ url;
} |
Instance 2
| The code is as follows: |
|
//
Echo get_redirect_url ('http: // www.111cN. net ');
// The output result is: http://code.google.com/android/
Function get_redirect_url ($ url ){
$ Redirect_url = null; $ Url_parts = @ parse_url ($ url );
If (! $ Url_parts) return false;
If (! Isset ($ url_parts ['host']) return false; // can't process relative URLs
If (! Isset ($ url_parts ['path']) $ url_parts ['path'] = '/'; $ Sock = fsockopen ($ url_parts ['host'], (isset ($ url_parts ['port'])? (Int) $ url_parts ['port']: 80), $ errno, $ errstr, 30 );
If (! $ Sock) return false; $ Request = "HEAD". $ url_parts ['path']. (isset ($ url_parts ['query'])? '? '. $ Url_parts ['query']: '')." HTTP/1.1rn ";
$ Request. = 'host: '. $ url_parts ['host']. "rn ";
$ Request. = "Connection: Closernrn ";
Fwrite ($ sock, $ request );
$ Response = '';
While (! Feof ($ sock) $ response. = fread ($ sock, 8192 );
Fclose ($ sock ); If (preg_match ('/^ Location: (. + ?) $/M', $ response, $ matches )){
If (substr ($ matches [1], 0, 1) = "/")
Return $ url_parts ['scheme ']. ": //". $ url_parts ['host']. trim ($ matches [1]);
Else
Return trim ($ matches [1]); } Else {
Return false;
} } |
Success ,...
