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HTML
165 lines
8.0 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>Set timeout period on a stream</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.stream-set-timeout" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">stream_set_timeout</h1>
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<p class="verinfo">(PHP 4 >= 4.3.0, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">stream_set_timeout</span> — <span class="dc-title">Set timeout period on a stream</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.stream-set-timeout-description">
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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>stream_set_timeout</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$stream</code></span>
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, <span class="methodparam"><span class="type">int</span> <code class="parameter">$seconds</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$microseconds</code><span class="initializer"> = 0</span></span>
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] ) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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Sets the timeout value on <code class="parameter">stream</code>,
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expressed in the sum of <code class="parameter">seconds</code> and
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<code class="parameter">microseconds</code>.
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</p>
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<p class="para">
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When the stream times out, the 'timed_out' key of the array returned by
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<span class="function"><a href="stream_get_meta_data.html" class="function">stream_get_meta_data()</a></span> is set to <strong><code>TRUE</code></strong>, although no
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error/warning is generated.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.stream-set-timeout-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">stream</code></dt>
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<dd>
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<p class="para">
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The target stream.
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</p>
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</dd>
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<dt>
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<code class="parameter">seconds</code></dt>
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<dd>
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<p class="para">
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The seconds part of the timeout to be set.
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</p>
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</dd>
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<dt>
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<code class="parameter">microseconds</code></dt>
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<dd>
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<p class="para">
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The microseconds part of the timeout to be set.
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.stream-set-timeout-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
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</p>
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</div>
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<div class="refsect1 changelog" id="refsect1-function.stream-set-timeout-changelog">
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<h3 class="title">更新日志</h3>
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<p class="para">
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<table class="doctable informaltable">
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<thead>
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<tr>
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<th>版本</th>
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<th>说明</th>
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</tr>
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</thead>
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<tbody class="tbody">
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<tr>
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<td>4.3.0</td>
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<td>
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As of PHP 4.3, this function can (potentially) work on any kind of
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stream. In PHP 4.3, socket based streams are still the only kind
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supported in the PHP core, although streams from other extensions
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may support this function.
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</td>
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</tr>
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</tbody>
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</table>
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.stream-set-timeout-examples">
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<h3 class="title">范例</h3>
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<p class="para">
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<div class="example" id="example-4834">
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<p><strong>Example #1 <span class="function"><strong>stream_set_timeout()</strong></span> example</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 />$fp </span><span style="color: #007700">= </span><span style="color: #0000BB">fsockopen</span><span style="color: #007700">(</span><span style="color: #DD0000">"www.example.com"</span><span style="color: #007700">, </span><span style="color: #0000BB">80</span><span style="color: #007700">);<br />if (!</span><span style="color: #0000BB">$fp</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">"Unable to open\n"</span><span style="color: #007700">;<br />} else {<br /><br /> </span><span style="color: #0000BB">fwrite</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">, </span><span style="color: #DD0000">"GET / HTTP/1.0\r\n\r\n"</span><span style="color: #007700">);<br /> </span><span style="color: #0000BB">stream_set_timeout</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">, </span><span style="color: #0000BB">2</span><span style="color: #007700">);<br /> </span><span style="color: #0000BB">$res </span><span style="color: #007700">= </span><span style="color: #0000BB">fread</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">, </span><span style="color: #0000BB">2000</span><span style="color: #007700">);<br /><br /> </span><span style="color: #0000BB">$info </span><span style="color: #007700">= </span><span style="color: #0000BB">stream_get_meta_data</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">);<br /> </span><span style="color: #0000BB">fclose</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">);<br /><br /> if (</span><span style="color: #0000BB">$info</span><span style="color: #007700">[</span><span style="color: #DD0000">'timed_out'</span><span style="color: #007700">]) {<br /> echo </span><span style="color: #DD0000">'Connection timed out!'</span><span style="color: #007700">;<br /> } else {<br /> echo </span><span style="color: #0000BB">$res</span><span style="color: #007700">;<br /> }<br /><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>
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</div>
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<div class="refsect1 notes" id="refsect1-function.stream-set-timeout-notes">
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<h3 class="title">注释</h3>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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This function doesn't work with advanced operations like
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<span class="function"><a href="stream_socket_recvfrom.html" class="function">stream_socket_recvfrom()</a></span>, use
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<span class="function"><a href="stream_select.html" class="function">stream_select()</a></span> with timeout parameter instead.
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</p>
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</p></blockquote>
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<p class="para">
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This function was previously called as
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<span class="function"><strong>set_socket_timeout()</strong></span> and later
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<span class="function"><a href="socket_set_timeout.html" class="function">socket_set_timeout()</a></span> but this usage is deprecated.
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.stream-set-timeout-seealso">
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<h3 class="title">参见</h3>
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="fsockopen.html" class="function" rel="rdfs-seeAlso">fsockopen()</a> - 打开一个网络连接或者一个Unix套接字连接</span></li>
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<li class="member"><span class="function"><a href="fopen.html" class="function" rel="rdfs-seeAlso">fopen()</a> - 打开文件或者 URL</span></li>
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</ul>
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</div>
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</div></div></div></body></html> |