Php curl request information and return information setting code instance

Php curl request information and return information setting code instance

This article mainly introduces the php curl request information and return information setting code instance. This article provides code instances directly. For more information, see

When using curl to capture webpage content, you often need to know the request header information returned by the webpage and the request-related information, it is helpful to analyze the request content, especially when there is redirection in the request process.

The following is an example of redirection in a request. Our purpose is to obtain the url address of the final request.

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$ Url = 'HTTP: // www.appchina.com/market/r/489267/com.app#.android.ilisten.vapk? C = aplus. direct & uid = gAJ9cQEu1TlyZxsXN-aB4RaanvFL6t6Bj-vj0rIBs & p = aplus. detail & m = redirect ';   $ Ch = curl_init (); Curl_setopt ($ ch, CURLOPT_URL, $ url ); // Curl_setopt ($ ch, CURLOPT_POST, 1 ); // Curl_setopt ($ ch, CURLOPT_POSTFIELDS, $ params ); Curl_setopt ($ ch, CURLOPT_HEADER, 1); // return response header information Curl_setopt ($ ch, CURLOPT_NOBODY, 1); // The response body content is not returned. // Curl_setopt ($ ch, CURLOPT_MAXREDIRS, 1); // you can specify the maximum number of redirection requests. Curl_setopt ($ ch, CURLOPT_RETURNTRANSFER, 1); // response is not output directly. Curl_setopt ($ ch, CURLOPT_FOLLOWLOCATION, 1); // If the returned response header contains a Location Value, the request is recursive. $ Content = curl_exec ($ ch ); $ Rinfo = curl_getinfo ($ ch );   Echo $ content, "</br> "; Echo " Print_r ($ rinfo );

The output result is as follows:

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HTTP/1.1 200 OKServer: nginxDate: Sat, 22 Dec 2012 06:17:44 GMTContent-Type: application/vnd. android. package-archiveConnection: closeLast-Modified: Mon, 03 Dec 2012 16:00:00 GMTExpires: Tue, 03 Dec 2013 16:00:00 GMTCache-Control: max-age = 31536000Content-Length: 2142149 Array ([url] => http://www.d.appchina.com/McDonald/r/489267/com.appshare.android.ilisten.vapk? C = aplus. direct & uid = gAJ9cQEu1TlyZxsXN-aB4RaanvFL6t6Bj-vj0rIBs & p = aplus. detail & m = redirect [content_type] => application/vnd. android. package-archive [http_code] => 200 [header_size] => 289 [request_size] => 196 [filetime] =>-1 [ssl_verify_result] => 0 [redirect_count] => 0 [total_time] => 0.171621 [namelookup_time] => 0.135256 [connect_time] => 0.152913 [pretransfer_time] => 0.152916 [size_upload] => 0 [size_download] => 0 [speed_download] => 0 [speed_upload] => 0 [download_content_length] => 2142149 [upload_content_length] => 0 [starttransfer_time] => 0.171582 [redirect_time] => 0 [certinfo] => Array ())

We can see that a 200 response is finally obtained after recursive requests, but this method cannot get the url of the last request, that is, the url of the final request, to get this url, You Need To recursively analyze the response returned by each request.

The following is a recursive function that I wrote to obtain the url of the last request.

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$ Url = 'HTTP: // www.appchina.com/market/r/489267/com.app#.android.ilisten.vapk? C = aplus. direct & uid = gAJ9cQEu1TlyZxsXN-aB4RaanvFL6t6Bj-vj0rIBs & p = aplus. detail & m = redirect '; [Php] view plaincopy $ RealUrl = getRedirectLocation ($ url );   Echo "</br> --->", $ realUrl;   Function getRedirectLocation ($ url ){   $ RealUrl = $ url; Echo $ url, "</br> "; $ Ch = curl_init (); Curl_setopt ($ ch, CURLOPT_URL, $ url ); Curl_setopt ($ ch, CURLOPT_HEADER, 1); curl_setopt ($ ch, CURLOPT_TIMEOUT, 3); // set the curl execution time to no more than 3 seconds // Curl_setopt ($ ch, CURLOPT_NOBODY, 1); // This line cannot be used. If you add this line, you will not get the real request url when you encounter a 302 redirection. Curl_setopt ($ ch, CURLOPT_RETURNTRANSFER, 1 ); $ Content = curl_exec ($ ch ); // Echo $ content; $ Rinfo = curl_getinfo ($ ch ); $ Matches = array (); If (preg_match ('/Location: \ s +? (. + ?) \ S +? /', $ Content, $ matches )){ // Echo $ matches [1], "</br> "; Unset ($ content ); $ RealUrl = getRedirectLocation ($ matches [1]); } If (isset ($ content )){ Unset ($ content ); } Return $ realUrl; }