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curl-getinfo.xml
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curl-getinfo.xml
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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="function.curl-getinfo" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>curl_getinfo</refname>
<refpurpose>Get information regarding a specific transfer</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>mixed</type><methodname>curl_getinfo</methodname>
<methodparam><type>CurlHandle</type><parameter>handle</parameter></methodparam>
<methodparam choice="opt"><type class="union"><type>int</type><type>null</type></type><parameter>option</parameter><initializer>&null;</initializer></methodparam>
</methodsynopsis>
<para>
Gets information about the last transfer.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
&curl.ch.description;
<varlistentry>
<term><parameter>option</parameter></term>
<listitem>
<para>
This may be one of the following constants:
<informaltable>
<tgroup cols="3">
<thead>
<row>
<entry valign="top">Option</entry>
<entry valign="top">&Description;</entry>
</row>
</thead>
<tbody>
<row>
<entry valign="top">
<constant>CURLINFO_CAINFO</constant>
</entry>
<entry valign="top">
Default built-in CA certificate path
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_CAPATH</constant>
</entry>
<entry valign="top">
Default built-in CA path string
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_EFFECTIVE_URL</constant>
</entry>
<entry valign="top">
Last effective URL
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_HTTP_CODE</constant>
</entry>
<entry valign="top">
The last response code. As of cURL 7.10.8, this is a legacy alias of CURLINFO_RESPONSE_CODE
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_FILETIME</constant>
</entry>
<entry valign="top">
Remote time of the retrieved document, with the CURLOPT_FILETIME enabled; if -1 is returned the time of the document is unknown
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_TOTAL_TIME</constant>
</entry>
<entry valign="top">
Total transaction time in seconds for last transfer
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_NAMELOOKUP_TIME</constant>
</entry>
<entry valign="top">
Time in seconds until name resolving was complete
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_CONNECT_TIME</constant>
</entry>
<entry valign="top">
Time in seconds it took to establish the connection
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_PRETRANSFER_TIME</constant>
</entry>
<entry valign="top">
Time in seconds from start until just before file transfer begins
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_STARTTRANSFER_TIME</constant>
</entry>
<entry valign="top">
Time in seconds until the first byte is about to be transferred
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_REDIRECT_COUNT</constant>
</entry>
<entry valign="top">
Number of redirects, with the CURLOPT_FOLLOWLOCATION option enabled
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_REDIRECT_TIME</constant>
</entry>
<entry valign="top">
Time in seconds of all redirection steps before final transaction was started, with the CURLOPT_FOLLOWLOCATION option enabled
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_REDIRECT_URL</constant>
</entry>
<entry valign="top">
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
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_PRIMARY_IP</constant>
</entry>
<entry valign="top">
IP address of the most recent connection
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_PRIMARY_PORT</constant>
</entry>
<entry valign="top">
Destination port of the most recent connection
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_LOCAL_IP</constant>
</entry>
<entry valign="top">
Local (source) IP address of the most recent connection
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_LOCAL_PORT</constant>
</entry>
<entry valign="top">
Local (source) port of the most recent connection
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_SIZE_UPLOAD</constant>
</entry>
<entry valign="top">
Total number of bytes uploaded
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_SIZE_DOWNLOAD</constant>
</entry>
<entry valign="top">
Total number of bytes downloaded
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_SPEED_DOWNLOAD</constant>
</entry>
<entry valign="top">
Average download speed
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_SPEED_UPLOAD</constant>
</entry>
<entry valign="top">
Average upload speed
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_HEADER_SIZE</constant>
</entry>
<entry valign="top">
Total size of all headers received
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_HEADER_OUT</constant>
</entry>
<entry valign="top">
The request string sent. For this to work, add the CURLINFO_HEADER_OUT option to the handle by calling curl_setopt()
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_REFERER</constant>
</entry>
<entry valign="top">
The referrer header
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_REQUEST_SIZE</constant>
</entry>
<entry valign="top">
Total size of issued requests, currently only for HTTP requests
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_RETRY_AFTER</constant>
</entry>
<entry valign="top">
The information from the Retry-After: header, or zero if there was no valid header.
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_SSL_VERIFYRESULT</constant>
</entry>
<entry valign="top">
Result of SSL certification verification requested by setting CURLOPT_SSL_VERIFYPEER
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_CONTENT_LENGTH_DOWNLOAD</constant>
</entry>
<entry valign="top">
Content length of download, read from Content-Length: field
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_CONTENT_LENGTH_UPLOAD</constant>
</entry>
<entry valign="top">
Specified size of upload
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_CONTENT_TYPE</constant>
</entry>
<entry valign="top">
Content-Type: of the requested document. NULL indicates server did not send valid Content-Type: header
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_PRIVATE</constant>
</entry>
<entry valign="top">
Private data associated with this cURL handle, previously set with the CURLOPT_PRIVATE option of curl_setopt()
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_PROXY_ERROR</constant>
</entry>
<entry valign="top">
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.
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_RESPONSE_CODE</constant>
</entry>
<entry valign="top">
The last response code
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_HTTP_CONNECTCODE</constant>
</entry>
<entry valign="top">
The CONNECT response code
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_HTTPAUTH_AVAIL</constant>
</entry>
<entry valign="top">
Bitmask indicating the authentication method(s) available according to the previous response
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_PROXYAUTH_AVAIL</constant>
</entry>
<entry valign="top">
Bitmask indicating the proxy authentication method(s) available according to the previous response
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_OS_ERRNO</constant>
</entry>
<entry valign="top">
Errno from a connect failure. The number is OS and system specific.
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_NUM_CONNECTS</constant>
</entry>
<entry valign="top">
Number of connections curl had to create to achieve the previous transfer
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_SSL_ENGINES</constant>
</entry>
<entry valign="top">
OpenSSL crypto-engines supported
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_COOKIELIST</constant>
</entry>
<entry valign="top">
All known cookies
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_FTP_ENTRY_PATH</constant>
</entry>
<entry valign="top">
Entry path in FTP server
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_APPCONNECT_TIME</constant>
</entry>
<entry valign="top">
Time in seconds it took from the start until the SSL/SSH connect/handshake to the remote host was completed
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_CERTINFO</constant>
</entry>
<entry valign="top">
TLS certificate chain
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_CONDITION_UNMET</constant>
</entry>
<entry valign="top">
Info on unmet time conditional
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_RTSP_CLIENT_CSEQ</constant>
</entry>
<entry valign="top">
Next RTSP client CSeq
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_RTSP_CSEQ_RECV</constant>
</entry>
<entry valign="top">
Recently received CSeq
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_RTSP_SERVER_CSEQ</constant>
</entry>
<entry valign="top">
Next RTSP server CSeq
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_RTSP_SESSION_ID</constant>
</entry>
<entry valign="top">
RTSP session ID
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_CONTENT_LENGTH_DOWNLOAD_T</constant>
</entry>
<entry valign="top">
The content-length of the download. This is the value read from the Content-Length: field. -1 if the size isn't known
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_CONTENT_LENGTH_UPLOAD_T</constant>
</entry>
<entry valign="top">
The specified size of the upload. -1 if the size isn't known
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_HTTP_VERSION</constant>
</entry>
<entry valign="top">
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
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_PROTOCOL</constant>
</entry>
<entry valign="top">
The protocol used in the last HTTP connection. The returned value will be exactly one of the CURLPROTO_* values
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_PROXY_SSL_VERIFYRESULT</constant>
</entry>
<entry valign="top">
The result of the certificate verification that was requested (using the CURLOPT_PROXY_SSL_VERIFYPEER option). Only used for HTTPS proxies
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_SCHEME</constant>
</entry>
<entry valign="top">
The URL scheme used for the most recent connection
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_SIZE_DOWNLOAD_T</constant>
</entry>
<entry valign="top">
Total number of bytes that were downloaded. The number is only for the latest transfer and will be reset again for each new transfer
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_SIZE_UPLOAD_T</constant>
</entry>
<entry valign="top">
Total number of bytes that were uploaded
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_SPEED_DOWNLOAD_T</constant>
</entry>
<entry valign="top">
The average download speed in bytes/second that curl measured for the complete download
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_SPEED_UPLOAD_T</constant>
</entry>
<entry valign="top">
The average upload speed in bytes/second that curl measured for the complete upload
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_APPCONNECT_TIME_T</constant>
</entry>
<entry valign="top">
Time, in microseconds, it took from the start until the SSL/SSH connect/handshake to the remote host was completed
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_CONNECT_TIME_T</constant>
</entry>
<entry valign="top">
Total time taken, in microseconds, from the start until the connection to the remote host (or proxy) was completed
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_FILETIME_T</constant>
</entry>
<entry valign="top">
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
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_NAMELOOKUP_TIME_T</constant>
</entry>
<entry valign="top">
Time in microseconds from the start until the name resolving was completed
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_PRETRANSFER_TIME_T</constant>
</entry>
<entry valign="top">
Time taken from the start until the file transfer is just about to begin, in microseconds
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_REDIRECT_TIME_T</constant>
</entry>
<entry valign="top">
Total time, in microseconds, it took for all redirection steps include name lookup, connect, pretransfer and transfer before final transaction was started
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_STARTTRANSFER_TIME_T</constant>
</entry>
<entry valign="top">
Time, in microseconds, it took from the start until the first byte is received
</entry>
</row>
<row>
<entry valign="top">
<constant>CURLINFO_TOTAL_TIME_T</constant>
</entry>
<entry valign="top">
Total time in microseconds for the previous transfer, including name resolving, TCP connect etc.
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
If <parameter>option</parameter> is given, returns its value.
Otherwise, returns an associative array with the following elements
(which correspond to <parameter>option</parameter>), or &false; on failure:
<itemizedlist>
<listitem>
<simpara>
"url"
</simpara>
</listitem>
<listitem>
<simpara>
"content_type"
</simpara>
</listitem>
<listitem>
<simpara>
"http_code"
</simpara>
</listitem>
<listitem>
<simpara>
"header_size"
</simpara>
</listitem>
<listitem>
<simpara>
"request_size"
</simpara>
</listitem>
<listitem>
<simpara>
"filetime"
</simpara>
</listitem>
<listitem>
<simpara>
"ssl_verify_result"
</simpara>
</listitem>
<listitem>
<simpara>
"redirect_count"
</simpara>
</listitem>
<listitem>
<simpara>
"total_time"
</simpara>
</listitem>
<listitem>
<simpara>
"namelookup_time"
</simpara>
</listitem>
<listitem>
<simpara>
"connect_time"
</simpara>
</listitem>
<listitem>
<simpara>
"pretransfer_time"
</simpara>
</listitem>
<listitem>
<simpara>
"size_upload"
</simpara>
</listitem>
<listitem>
<simpara>
"size_download"
</simpara>
</listitem>
<listitem>
<simpara>
"speed_download"
</simpara>
</listitem>
<listitem>
<simpara>
"speed_upload"
</simpara>
</listitem>
<listitem>
<simpara>
"download_content_length"
</simpara>
</listitem>
<listitem>
<simpara>
"upload_content_length"
</simpara>
</listitem>
<listitem>
<simpara>
"starttransfer_time"
</simpara>
</listitem>
<listitem>
<simpara>
"redirect_time"
</simpara>
</listitem>
<listitem>
<simpara>
"certinfo"
</simpara>
</listitem>
<listitem>
<simpara>
"primary_ip"
</simpara>
</listitem>
<listitem>
<simpara>
"primary_port"
</simpara>
</listitem>
<listitem>
<simpara>
"local_ip"
</simpara>
</listitem>
<listitem>
<simpara>
"local_port"
</simpara>
</listitem>
<listitem>
<simpara>
"redirect_url"
</simpara>
</listitem>
<listitem>
<simpara>
"request_header" (This is only set if the <constant>CURLINFO_HEADER_OUT</constant>
is set by a previous call to <function>curl_setopt</function>)
</simpara>
</listitem>
</itemizedlist>
Note that private data is not included in the associative array and must be retrieved individually with the <constant>CURLINFO_PRIVATE</constant> option.
</para>
</refsect1>
<refsect1 role="changelog">
&reftitle.changelog;
<para>
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
<row>
<entry>8.3.0</entry>
<entry>
Introduced <constant>CURLINFO_CAINFO</constant>
and <constant>CURLINFO_CAPATH</constant>.
</entry>
</row>
<row>
<entry>8.2.0</entry>
<entry>
Introduced <constant>CURLINFO_PROXY_ERROR</constant>,
<constant>CURLINFO_REFERER</constant>,
<constant>CURLINFO_RETRY_AFTER</constant>.
</entry>
</row>
&curl.changelog.handle-param;
<row>
<entry>8.0.0</entry>
<entry>
<parameter>option</parameter> is nullable now;
previously, the default was <literal>0</literal>.
</entry>
</row>
<row>
<entry>7.3.0</entry>
<entry>
Introduced <constant>CURLINFO_CONTENT_LENGTH_DOWNLOAD_T</constant>,
<constant>CURLINFO_CONTENT_LENGTH_UPLOAD_T</constant>,
<constant>CURLINFO_HTTP_VERSION</constant>,
<constant>CURLINFO_PROTOCOL</constant>,
<constant>CURLINFO_PROXY_SSL_VERIFYRESULT</constant>,
<constant>CURLINFO_SCHEME</constant>,
<constant>CURLINFO_SIZE_DOWNLOAD_T</constant>,
<constant>CURLINFO_SIZE_UPLOAD_T</constant>,
<constant>CURLINFO_SPEED_DOWNLOAD_T</constant>,
<constant>CURLINFO_SPEED_UPLOAD_T</constant>,
<constant>CURLINFO_APPCONNECT_TIME_T</constant>,
<constant>CURLINFO_CONNECT_TIME_T</constant>,
<constant>CURLINFO_FILETIME_T</constant>,
<constant>CURLINFO_NAMELOOKUP_TIME_T</constant>,
<constant>CURLINFO_PRETRANSFER_TIME_T</constant>,
<constant>CURLINFO_REDIRECT_TIME_T</constant>,
<constant>CURLINFO_STARTTRANSFER_TIME_T</constant>,
<constant>CURLINFO_TOTAL_TIME_T</constant>.
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>curl_getinfo</function> example</title>
<programlisting role="php">
<![CDATA[
<?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);
?>
]]>
</programlisting>
</example>
</para>
<para>
<example>
<title><function>curl_getinfo</function> example with <parameter>option</parameter> parameter</title>
<programlisting role="php">
<![CDATA[
<?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);
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
<refsect1 role="notes">
&reftitle.notes;
<note>
<para>
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.
</para>
</note>
</refsect1>
</refentry>
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