php-doc-en/reference/curl/functions/curl-getinfo.xml

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<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>resource</type><parameter>ch</parameter></methodparam>
   <methodparam choice="opt"><type>int</type><parameter>opt</parameter><initializer>0</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>opt</parameter></term>
     <listitem>
      <para>
       This may be one of the following constants:
       <itemizedlist>
        <listitem>
         <simpara>
          <constant>CURLINFO_EFFECTIVE_URL</constant> - Last effective URL
         </simpara>
        </listitem>
        <listitem>
         <simpara>
          <constant>CURLINFO_HTTP_CODE</constant> - Last received HTTP code
         </simpara>
        </listitem>
        <listitem>
         <simpara>
          <constant>CURLINFO_FILETIME</constant> - Remote time of the retrieved document, if -1 is returned the time of the document is unknown
         </simpara>
        </listitem>
        <listitem>
         <simpara>
          <constant>CURLINFO_TOTAL_TIME</constant> - Total transaction time in seconds for last transfer
         </simpara>
        </listitem>
        <listitem>
         <simpara>
          <constant>CURLINFO_NAMELOOKUP_TIME</constant> - Time in seconds until name resolving was complete
         </simpara>
        </listitem>
        <listitem>
         <simpara>
          <constant>CURLINFO_CONNECT_TIME</constant> - Time in seconds it took to establish the connection
         </simpara>
        </listitem>
        <listitem>
         <simpara>
          <constant>CURLINFO_PRETRANSFER_TIME</constant> - Time in seconds from start until just before file transfer begins
         </simpara>
        </listitem>
        <listitem>
         <simpara>
          <constant>CURLINFO_STARTTRANSFER_TIME</constant> - Time in seconds until the first byte is about to be transferred
         </simpara>
        </listitem>
        <listitem>
         <simpara>
          <constant>CURLINFO_REDIRECT_COUNT</constant> - Number of redirects
         </simpara>
        </listitem>
        <listitem>
         <simpara>
          <constant>CURLINFO_REDIRECT_TIME</constant> - Time in seconds of all redirection steps before final transaction was started
         </simpara>
        </listitem>
        <listitem>
         <simpara>
          <constant>CURLINFO_SIZE_UPLOAD</constant> - Total number of bytes uploaded
         </simpara>
        </listitem>
        <listitem>
         <simpara>
          <constant>CURLINFO_SIZE_DOWNLOAD</constant> - Total number of bytes downloaded
         </simpara>
        </listitem>
        <listitem>
         <simpara>
          <constant>CURLINFO_SPEED_DOWNLOAD</constant> - Average download speed
         </simpara>
        </listitem>
        <listitem>
         <simpara>
          <constant>CURLINFO_SPEED_UPLOAD</constant> - Average upload speed
         </simpara>
        </listitem>
        <listitem>
         <simpara>
          <constant>CURLINFO_HEADER_SIZE</constant> - Total size of all headers received
         </simpara>
        </listitem>
        <listitem>
         <simpara>
          <constant>CURLINFO_HEADER_OUT</constant> - The request string sent. For this to 
          work, add the <constant>CURLINFO_HEADER_OUT</constant> option to the handle by calling 
          <function>curl_setopt</function>
         </simpara>
        </listitem>
        <listitem>
         <simpara>
        <constant>CURLINFO_REQUEST_SIZE</constant> - Total size of issued requests, currently only for HTTP requests
         </simpara>
        </listitem>
        <listitem>
         <simpara>
          <constant>CURLINFO_SSL_VERIFYRESULT</constant> - Result of SSL certification verification requested by setting <constant>CURLOPT_SSL_VERIFYPEER</constant>
         </simpara>
        </listitem>
        <listitem>
         <simpara>
          <constant>CURLINFO_CONTENT_LENGTH_DOWNLOAD</constant> - content-length of download, read from <literal>Content-Length:</literal> field
         </simpara>
        </listitem>
        <listitem>
         <simpara>
          <constant>CURLINFO_CONTENT_LENGTH_UPLOAD</constant> - Specified size of upload
         </simpara>
        </listitem>
        <listitem>
         <simpara>
          <constant>CURLINFO_CONTENT_TYPE</constant> - <literal>Content-Type:</literal> of the requested document, NULL indicates server did not send valid <literal>Content-Type:</literal> header
         </simpara>
        </listitem>
       </itemizedlist>
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   If <parameter>opt</parameter> is given, returns its value.
   Otherwise, returns an associative array with the following elements 
   (which correspond to <parameter>opt</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>
      "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>
  </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>5.1.3</entry>
       <entry>
        Introduced <constant>CURLINFO_HEADER_OUT</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.yahoo.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'];
}

// 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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