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57 lines
3.9 KiB
HTML
57 lines
3.9 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>建立一个新的 FTP 连接</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.ftp-connect" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">ftp_connect</h1>
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<p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">ftp_connect</span> — <span class="dc-title">建立一个新的 FTP 连接</span></p>
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</div>
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<div class="refsect1 unknown-seealsp" id="refsect1-function.ftp-connect-unknown-seealsp">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>ftp_connect</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$host</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$port</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$timeout</code></span>
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]] ) : <span class="type">resource</span></div>
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<p class="para rdfs-comment">
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如果成功返回一个连接标识，失败则返回 <strong><code>FALSE</code></strong> 。
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</p>
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<p class="para">
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<span class="function"><strong>ftp_connect()</strong></span> 打开一个 FTP 连接，参数
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<code class="parameter">host</code> 为要连接的服务器。<code class="parameter">host</code>
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后面不应以斜线结尾，前面也不需要用
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<em>ftp://</em> 开头。可选参数<code class="parameter">port</code>
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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。
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</p>
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<p class="para">
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可选参数 <code class="parameter">timeout</code> 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="ftp_set_option.html" class="function">ftp_set_option()</a></span>
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及 <span class="function"><a href="ftp_get_option.html" class="function">ftp_get_option()</a></span> 来改变和获取。
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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参数 <code class="parameter">timeout</code> 仅适用于 PHP 4.2.0 及以上版本.
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</p>
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</p></blockquote>
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</p>
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<div class="example" id="example-5308">
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<p><strong>Example #1 <span class="function"><strong>ftp_connect()</strong></span> 例子</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?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">$conn_id </span><span style="color: #007700">= </span><span style="color: #0000BB">ftp_connect</span><span style="color: #007700">(</span><span style="color: #0000BB">$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">?></span>
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</span>
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</pre></div>
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</div>
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</div>
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<p class="para">
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参见 <span class="function"><a href="ftp_close.html" class="function">ftp_close()</a></span> 和 <span class="function"><a href="ftp_ssl_connect.html" class="function">ftp_ssl_connect()</a></span>。
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</p>
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</div>
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</div></div></div></body></html> |