PHP: curl_getinfo

Description

curl_getinfo(CurlHandle $handle, ?int $option = null): mixed

Gets information about the last transfer.

Parameters

handle

A cURL handle returned by curl_init().

option

This may be one of the following constants:

Option	Description
`CURLINFO_CAINFO`	Default built-in CA certificate path
`CURLINFO_CAPATH`	Default built-in CA path string
`CURLINFO_EFFECTIVE_URL`	Last effective URL
`CURLINFO_HTTP_CODE`	The last response code. As of cURL 7.10.8, this is a legacy alias of CURLINFO_RESPONSE_CODE
`CURLINFO_FILETIME`	Remote time of the retrieved document, with the CURLOPT_FILETIME enabled; if -1 is returned the time of the document is unknown
`CURLINFO_TOTAL_TIME`	Total transaction time in seconds for last transfer
`CURLINFO_NAMELOOKUP_TIME`	Time in seconds until name resolving was complete
`CURLINFO_CONNECT_TIME`	Time in seconds it took to establish the connection
`CURLINFO_PRETRANSFER_TIME`	Time in seconds from start until just before file transfer begins
`CURLINFO_STARTTRANSFER_TIME`	Time in seconds until the first byte is about to be transferred
`CURLINFO_REDIRECT_COUNT`	Number of redirects, with the CURLOPT_FOLLOWLOCATION option enabled
`CURLINFO_REDIRECT_TIME`	Time in seconds of all redirection steps before final transaction was started, with the CURLOPT_FOLLOWLOCATION option enabled
`CURLINFO_REDIRECT_URL`	With the CURLOPT_FOLLOWLOCATION option disabled: redirect URL found in the last transaction, that should be requested manually next. With the CURLOPT_FOLLOWLOCATION option enabled: this is empty. The redirect URL in this case is available in CURLINFO_EFFECTIVE_URL
`CURLINFO_PRIMARY_IP`	IP address of the most recent connection
`CURLINFO_PRIMARY_PORT`	Destination port of the most recent connection
`CURLINFO_LOCAL_IP`	Local (source) IP address of the most recent connection
`CURLINFO_LOCAL_PORT`	Local (source) port of the most recent connection
`CURLINFO_SIZE_UPLOAD`	Total number of bytes uploaded
`CURLINFO_SIZE_DOWNLOAD`	Total number of bytes downloaded
`CURLINFO_SPEED_DOWNLOAD`	Average download speed
`CURLINFO_SPEED_UPLOAD`	Average upload speed
`CURLINFO_HEADER_SIZE`	Total size of all headers received
`CURLINFO_HEADER_OUT`	The request string sent. For this to work, add the CURLINFO_HEADER_OUT option to the handle by calling curl_setopt()
`CURLINFO_REFERER`	The referrer header
`CURLINFO_REQUEST_SIZE`	Total size of issued requests, currently only for HTTP requests
`CURLINFO_RETRY_AFTER`	The information from the Retry-After: header, or zero if there was no valid header.
`CURLINFO_SSL_VERIFYRESULT`	Result of SSL certification verification requested by setting CURLOPT_SSL_VERIFYPEER
`CURLINFO_CONTENT_LENGTH_DOWNLOAD`	Content length of download, read from Content-Length: field
`CURLINFO_CONTENT_LENGTH_UPLOAD`	Specified size of upload
`CURLINFO_CONTENT_TYPE`	Content-Type: of the requested document. NULL indicates server did not send valid Content-Type: header
`CURLINFO_PRIVATE`	Private data associated with this cURL handle, previously set with the CURLOPT_PRIVATE option of curl_setopt()
`CURLINFO_PROXY_ERROR`	The detailed (SOCKS) proxy error code when the most recent transfer returned a CURLE_PROXY error. The returned value will be exactly one of the CURLPX_* values. The error code will be CURLPX_OK if no response code was available.
`CURLINFO_RESPONSE_CODE`	The last response code
`CURLINFO_HTTP_CONNECTCODE`	The CONNECT response code
`CURLINFO_HTTPAUTH_AVAIL`	Bitmask indicating the authentication method(s) available according to the previous response
`CURLINFO_PROXYAUTH_AVAIL`	Bitmask indicating the proxy authentication method(s) available according to the previous response
`CURLINFO_OS_ERRNO`	Errno from a connect failure. The number is OS and system specific.
`CURLINFO_NUM_CONNECTS`	Number of connections curl had to create to achieve the previous transfer
`CURLINFO_SSL_ENGINES`	OpenSSL crypto-engines supported
`CURLINFO_COOKIELIST`	All known cookies
`CURLINFO_FTP_ENTRY_PATH`	Entry path in FTP server
`CURLINFO_APPCONNECT_TIME`	Time in seconds it took from the start until the SSL/SSH connect/handshake to the remote host was completed
`CURLINFO_CERTINFO`	TLS certificate chain
`CURLINFO_CONDITION_UNMET`	Info on unmet time conditional
`CURLINFO_RTSP_CLIENT_CSEQ`	Next RTSP client CSeq
`CURLINFO_RTSP_CSEQ_RECV`	Recently received CSeq
`CURLINFO_RTSP_SERVER_CSEQ`	Next RTSP server CSeq
`CURLINFO_RTSP_SESSION_ID`	RTSP session ID
`CURLINFO_CONTENT_LENGTH_DOWNLOAD_T`	The content-length of the download. This is the value read from the Content-Length: field. -1 if the size isn't known
`CURLINFO_CONTENT_LENGTH_UPLOAD_T`	The specified size of the upload. -1 if the size isn't known
`CURLINFO_HTTP_VERSION`	The version used in the last HTTP connection. The return value will be one of the defined CURL_HTTP_VERSION_* constants or 0 if the version can't be determined
`CURLINFO_PROTOCOL`	The protocol used in the last HTTP connection. The returned value will be exactly one of the CURLPROTO_* values
`CURLINFO_PROXY_SSL_VERIFYRESULT`	The result of the certificate verification that was requested (using the CURLOPT_PROXY_SSL_VERIFYPEER option). Only used for HTTPS proxies
`CURLINFO_SCHEME`	The URL scheme used for the most recent connection
`CURLINFO_SIZE_DOWNLOAD_T`	Total number of bytes that were downloaded. The number is only for the latest transfer and will be reset again for each new transfer
`CURLINFO_SIZE_UPLOAD_T`	Total number of bytes that were uploaded
`CURLINFO_SPEED_DOWNLOAD_T`	The average download speed in bytes/second that curl measured for the complete download
`CURLINFO_SPEED_UPLOAD_T`	The average upload speed in bytes/second that curl measured for the complete upload
`CURLINFO_APPCONNECT_TIME_T`	Time, in microseconds, it took from the start until the SSL/SSH connect/handshake to the remote host was completed
`CURLINFO_CONNECT_TIME_T`	Total time taken, in microseconds, from the start until the connection to the remote host (or proxy) was completed
`CURLINFO_FILETIME_T`	Remote time of the retrieved document (as Unix timestamp), an alternative to CURLINFO_FILETIME to allow systems with 32 bit long variables to extract dates outside of the 32bit timestamp range
`CURLINFO_NAMELOOKUP_TIME_T`	Time in microseconds from the start until the name resolving was completed
`CURLINFO_PRETRANSFER_TIME_T`	Time taken from the start until the file transfer is just about to begin, in microseconds
`CURLINFO_REDIRECT_TIME_T`	Total time, in microseconds, it took for all redirection steps include name lookup, connect, pretransfer and transfer before final transaction was started
`CURLINFO_STARTTRANSFER_TIME_T`	Time, in microseconds, it took from the start until the first byte is received
`CURLINFO_TOTAL_TIME_T`	Total time in microseconds for the previous transfer, including name resolving, TCP connect etc.

Return Values

If option is given, returns its value. Otherwise, returns an associative array with the following elements (which correspond to option), or false on failure:

"url"
"content_type"
"http_code"
"header_size"
"request_size"
"filetime"
"ssl_verify_result"
"redirect_count"
"total_time"
"namelookup_time"
"connect_time"
"pretransfer_time"
"size_upload"
"size_download"
"speed_download"
"speed_upload"
"download_content_length"
"upload_content_length"
"starttransfer_time"
"redirect_time"
"certinfo"
"primary_ip"
"primary_port"
"local_ip"
"local_port"
"redirect_url"
"request_header" (This is only set if the CURLINFO_HEADER_OUT is set by a previous call to curl_setopt())

Note that private data is not included in the associative array and must be retrieved individually with the CURLINFO_PRIVATE option.

Changelog

Version	Description
8.3.0	Introduced `CURLINFO_CAINFO` and `CURLINFO_CAPATH`.
8.2.0	Introduced `CURLINFO_PROXY_ERROR`, `CURLINFO_REFERER`, `CURLINFO_RETRY_AFTER`.
8.0.0	`handle` expects a CurlHandle instance now; previously, a resource was expected.
8.0.0	`option` is nullable now; previously, the default was `0`.
7.3.0	Introduced `CURLINFO_CONTENT_LENGTH_DOWNLOAD_T`, `CURLINFO_CONTENT_LENGTH_UPLOAD_T`, `CURLINFO_HTTP_VERSION`, `CURLINFO_PROTOCOL`, `CURLINFO_PROXY_SSL_VERIFYRESULT`, `CURLINFO_SCHEME`, `CURLINFO_SIZE_DOWNLOAD_T`, `CURLINFO_SIZE_UPLOAD_T`, `CURLINFO_SPEED_DOWNLOAD_T`, `CURLINFO_SPEED_UPLOAD_T`, `CURLINFO_APPCONNECT_TIME_T`, `CURLINFO_CONNECT_TIME_T`, `CURLINFO_FILETIME_T`, `CURLINFO_NAMELOOKUP_TIME_T`, `CURLINFO_PRETRANSFER_TIME_T`, `CURLINFO_REDIRECT_TIME_T`, `CURLINFO_STARTTRANSFER_TIME_T`, `CURLINFO_TOTAL_TIME_T`.

Examples

Example #1 curl_getinfo() example

<?php
// Create a cURL handle
$ch = curl_init('http://www.example.com/');

// Execute
curl_exec($ch);

// Check if any error occurred
if (!curl_errno($ch)) {
  $info = curl_getinfo($ch);
  echo 'Took ', $info['total_time'], ' seconds to send a request to ', $info['url'], "\n";
}

// Close handle
curl_close($ch);
?>

Example #2 curl_getinfo() example with option parameter

<?php
// Create a cURL handle
$ch = curl_init('http://www.example.com/');

// Execute
curl_exec($ch);

// Check HTTP status code
if (!curl_errno($ch)) {
  switch ($http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE)) {
    case 200:  # OK
      break;
    default:
      echo 'Unexpected HTTP code: ', $http_code, "\n";
  }
}

// Close handle
curl_close($ch);
?>

Notes

Note:
Information gathered by this function is kept if the handle is re-used. This means that unless a statistic is overridden internally by this function, the previous info is returned.

curl_getinfo