curl-multi-add-handle.xml

<?xml version="1.0" encoding="utf-8"?>
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<!-- EN-Revision: b7f8c11e56ff1c57a2993e2ed7e5c5ace18637fd Maintainer: mowangjuanzi Status: ready -->
<refentry xml:id="function.curl-multi-add-handle" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>curl_multi_add_handle</refname>
  <refpurpose>添加普通 cURL 句柄到 cURL 多句柄</refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>int</type><methodname>curl_multi_add_handle</methodname>
   <methodparam><type>CurlMultiHandle</type><parameter>multi_handle</parameter></methodparam>
   <methodparam><type>CurlHandle</type><parameter>handle</parameter></methodparam>
  </methodsynopsis>
  <para>
   增加 <parameter>handle</parameter> 句柄到多句柄 <parameter>multi_handle</parameter>
  </para>
 </refsect1>
 
 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    &curl.mh.description;
    &curl.ch.description;
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   成功时返回 0，失败时返回 <constant>CURLM_XXX</constant> 之一的错误码。
  </para>
 </refsect1>
 
 <refsect1 role="changelog">
  &reftitle.changelog;
  <informaltable>
   <tgroup cols="2">
    <thead>
     <row>
      <entry>&Version;</entry>
      <entry>&Description;</entry>
     </row>
    </thead>
    <tbody>
     &curl.changelog.multi-handle-param;
     &curl.changelog.handle-param;
    </tbody>
   </tgroup>
  </informaltable>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>curl_multi_add_handle</function> 示例</title>
    <para>
     此示例将创建两个 cURL 句柄，并把它们加到多句柄中，然后对其异步处理。
    </para>
    <programlisting role="php">
<![CDATA[
<?php
// 创建一对 cURL 资源
$ch1 = curl_init();
$ch2 = curl_init();

// 设置 URL 和其它相应的选项
curl_setopt($ch1, CURLOPT_URL, "http://www.example.com/");
curl_setopt($ch1, CURLOPT_HEADER, 0);
curl_setopt($ch2, CURLOPT_URL, "http://www.php.net/");
curl_setopt($ch2, CURLOPT_HEADER, 0);

// 创建 cURL 多句柄
$mh = curl_multi_init();

// 新增两个句柄
curl_multi_add_handle($mh,$ch1);
curl_multi_add_handle($mh,$ch2);

// 执行多句柄
do {
    $status = curl_multi_exec($mh, $active);
    if ($active) {
        curl_multi_select($mh);
    }
} while ($active && $status == CURLM_OK);

// 关闭全部句柄
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_multi_remove_handle</function></member>
    <member><function>curl_multi_init</function></member>
    <member><function>curl_init</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>
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