php-doc-en/reference/curl/functions/curl-multi-init.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="function.curl-multi-init" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>curl_multi_init</refname>
  <refpurpose>Returns a new cURL multi handle</refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>resource</type><methodname>curl_multi_init</methodname>
   <void />
  </methodsynopsis>
  <para>
   Allows the processing of multiple cURL handles asynchronously.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  &no.function.parameters;
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns a cURL multi handle resource on success, &false; on failure.
  </para>
 </refsect1>
 
 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>curl_multi_init</function> example</title>
    <para>
     This example will create two cURL handles, add them to a multi
     handle, and process them asynchronously.
    </para>
    <programlisting role="php">
<![CDATA[
<?php
// create both cURL resources
$ch1 = curl_init();
$ch2 = curl_init();

// set URL and other appropriate options
curl_setopt($ch1, CURLOPT_URL, "http://lxr.php.net/");
curl_setopt($ch1, CURLOPT_HEADER, 0);
curl_setopt($ch2, CURLOPT_URL, "http://www.php.net/");
curl_setopt($ch2, CURLOPT_HEADER, 0);

//create the multiple cURL handle
$mh = curl_multi_init();

//add the two handles
curl_multi_add_handle($mh,$ch1);
curl_multi_add_handle($mh,$ch2);

//execute the multi handle
do {
    $status = curl_multi_exec($mh, $active);
    if ($active) {
        curl_multi_select($mh);
    }
} while ($active && $status == CURLM_OK);

//close the handles
curl_multi_remove_handle($mh, $ch1);
curl_multi_remove_handle($mh, $ch2);
curl_multi_close($mh);

?>
]]>
    </programlisting>
   </example>
  </para>
 </refsect1>
 
 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>curl_init</function></member>
    <member><function>curl_multi_close</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>

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