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?>
<div id="function.ftp-connect" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">ftp_connect</h1>
  <p class="verinfo">(PHP 4, PHP 5, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">ftp_connect</span> &mdash; <span class="dc-title">建立新 FTP 连接</span></p>

 </div>
 <div class="refsect1 description" id="refsect1-function.ftp-connect-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>ftp_connect</strong></span>(<span class="methodparam"><span class="type"><a href="language.types.string.php" class="type string">string</a></span> <code class="parameter">$hostname</code></span>, <span class="methodparam"><span class="type"><a href="language.types.integer.php" class="type int">int</a></span> <code class="parameter">$port</code><span class="initializer"> = 21</span></span>, <span class="methodparam"><span class="type"><a href="language.types.integer.php" class="type int">int</a></span> <code class="parameter">$timeout</code><span class="initializer"> = 90</span></span>): <span class="type"><span class="type"><a href="class.ftp-connection.php" class="type FTP\Connection">FTP\Connection</a></span>|<span class="type"><a href="language.types.singleton.php" class="type false">false</a></span></span></div>

  <p class="para rdfs-comment">
   <span class="function"><strong>ftp_connect()</strong></span> 将会建立 FTP 连接到指定的服务器 <code class="parameter">hostname</code>。
  </p>
 </div>

 <div class="refsect1 parameters" id="refsect1-function.ftp-connect-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>
    
     <dt><code class="parameter">hostname</code></dt>
     <dd>
      <p class="para">
       要连接的服务器地址。此参数后面不应以斜线结尾，前面也不需要用 <code class="literal">ftp://</code> 开头。
      </p>
     </dd>
    
    
     <dt><code class="parameter">port</code></dt>
     <dd>
      <p class="para">
        为要连接到的 FTP 器的端口号，如果没有设置或者为 0，则会使用默认的端口 21 来连接。
      </p>
     </dd>
    
    
     <dt><code class="parameter">timeout</code></dt>
     <dd>
      <p class="para">
        用来设置网络传输的超时时间限制。如果此选项留空，则默认的值为 90 秒。超时时间可以在任何时候通过函数
        <span class="function"><a href="function.ftp-set-option.php" class="function">ftp_set_option()</a></span> 及 <span class="function"><a href="function.ftp-get-option.php" class="function">ftp_get_option()</a></span> 来改变和获取。
      </p>
     </dd>
    
   </dl>
  </p>
 </div>

 <div class="refsect1 returnvalues" id="refsect1-function.ftp-connect-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   成功时返回 <span class="classname"><a href="class.ftp-connection.php" class="classname">FTP\Connection</a></span> 实例， 或者在失败时返回 <strong><code><a href="reserved.constants.php#constant.false">false</a></code></strong>。
  </p>
 </div>


 <div class="refsect1 changelog" id="refsect1-function.ftp-connect-changelog">
  <h3 class="title">更新日志</h3>
  <table class="doctable informaltable">
   
    <thead>
     <tr>
      <th>版本</th>
      <th>说明</th>
     </tr>

    </thead>

    <tbody class="tbody">
     <tr>
      <td>8.1.0</td>
      <td>
       现在返回 <span class="classname"><a href="class.ftp-connection.php" class="classname">FTP\Connection</a></span> 实例；之前返回 <span class="type"><a href="language.types.resource.php" class="type resource">resource</a></span>。
      </td>
     </tr>

    </tbody>
   
  </table>

 </div>

 
 <div class="refsect1 examples" id="refsect1-function.ftp-connect-examples">
  <h3 class="title">示例</h3>
  <p class="para">
   <div class="example" id="example-1">
    <p><strong>示例 #1 <span class="function"><strong>ftp_connect()</strong></span> 示例</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br /><br />$ftp_server </span><span style="color: #007700">= </span><span style="color: #DD0000">"ftp.example.com"</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">// set up a connection or die<br /></span><span style="color: #0000BB">$ftp </span><span style="color: #007700">= </span><span style="color: #0000BB">ftp_connect</span><span style="color: #007700">(</span><span style="color: #0000BB">$ftp_server</span><span style="color: #007700">) or die(</span><span style="color: #DD0000">"Couldn't connect to </span><span style="color: #0000BB">$ftp_server</span><span style="color: #DD0000">"</span><span style="color: #007700">); <br /><br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>  
    </div>

   </div>
  </p>
 </div>

 <div class="refsect1 seealso" id="refsect1-function.ftp-connect-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li><span class="function"><a href="function.ftp-close.php" class="function" rel="rdfs-seeAlso">ftp_close()</a> - 关闭 FTP 连接</span></li>
    <li><span class="function"><a href="function.ftp-ssl-connect.php" class="function" rel="rdfs-seeAlso">ftp_ssl_connect()</a> - 打开安全 SSL-FTP 连接</span></li>
   </ul>
  </p>
 </div>

</div><?php manual_footer($setup); ?>