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111 lines
6.3 KiB
HTML
111 lines
6.3 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>Return a string describing a socket error</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.socket-strerror" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">socket_strerror</h1>
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<p class="verinfo">(PHP 4 >= 4.1.0, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">socket_strerror</span> — <span class="dc-title">Return a string describing a socket error</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.socket-strerror-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>socket_strerror</strong></span>
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( <span class="methodparam"><span class="type">int</span> <code class="parameter">$errno</code></span>
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) : <span class="type">string</span></div>
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<p class="para rdfs-comment">
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<span class="function"><strong>socket_strerror()</strong></span> takes as its
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<code class="parameter">errno</code> parameter a socket error code as returned by
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<span class="function"><a href="socket_last_error.html" class="function">socket_last_error()</a></span> and returns the corresponding
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explanatory text.
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</p>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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Although the error messages generated by the socket extension are in
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English, the system messages retrieved with this function will appear
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depending on the current locale (<strong><code>LC_MESSAGES</code></strong>).
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</p>
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</p></blockquote>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.socket-strerror-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">errno</code></dt>
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<dd>
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<p class="para">
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A valid socket error number, likely produced by
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<span class="function"><a href="socket_last_error.html" class="function">socket_last_error()</a></span>.
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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.socket-strerror-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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Returns the error message associated with the <code class="parameter">errno</code>
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parameter.
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.socket-strerror-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-5609">
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<p><strong>Example #1 <span class="function"><strong>socket_strerror()</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 /></span><span style="color: #007700">if (</span><span style="color: #0000BB">false </span><span style="color: #007700">== (</span><span style="color: #0000BB">$socket </span><span style="color: #007700">= @</span><span style="color: #0000BB">socket_create</span><span style="color: #007700">(</span><span style="color: #0000BB">AF_INET</span><span style="color: #007700">, </span><span style="color: #0000BB">SOCK_STREAM</span><span style="color: #007700">, </span><span style="color: #0000BB">SOL_TCP</span><span style="color: #007700">))) {<br /> echo </span><span style="color: #DD0000">"socket_create() failed: reason: " </span><span style="color: #007700">. </span><span style="color: #0000BB">socket_strerror</span><span style="color: #007700">(</span><span style="color: #0000BB">socket_last_error</span><span style="color: #007700">()) . </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br />}<br /><br />if (</span><span style="color: #0000BB">false </span><span style="color: #007700">== (@</span><span style="color: #0000BB">socket_bind</span><span style="color: #007700">(</span><span style="color: #0000BB">$socket</span><span style="color: #007700">, </span><span style="color: #DD0000">'127.0.0.1'</span><span style="color: #007700">, </span><span style="color: #0000BB">80</span><span style="color: #007700">))) {<br /> echo </span><span style="color: #DD0000">"socket_bind() failed: reason: " </span><span style="color: #007700">. </span><span style="color: #0000BB">socket_strerror</span><span style="color: #007700">(</span><span style="color: #0000BB">socket_last_error</span><span style="color: #007700">(</span><span style="color: #0000BB">$socket</span><span style="color: #007700">)) . </span><span style="color: #DD0000">"\n"</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 class="example-contents"><p>
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The expected output from the above example (assuming the script
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is not run with root privileges):
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</p></div>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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socket_bind() failed: reason: Permission denied
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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 seealso" id="refsect1-function.socket-strerror-seealso">
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<h3 class="title">参见</h3>
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<p class="para">
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="socket_accept.html" class="function" rel="rdfs-seeAlso">socket_accept()</a> - Accepts a connection on a socket</span></li>
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<li class="member"><span class="function"><a href="socket_bind.html" class="function" rel="rdfs-seeAlso">socket_bind()</a> - 给套接字绑定名字</span></li>
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<li class="member"><span class="function"><a href="socket_connect.html" class="function" rel="rdfs-seeAlso">socket_connect()</a> - 开启一个套接字连接</span></li>
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<li class="member"><span class="function"><a href="socket_listen.html" class="function" rel="rdfs-seeAlso">socket_listen()</a> - Listens for a connection on a socket</span></li>
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<li class="member"><span class="function"><a href="socket_create.html" class="function" rel="rdfs-seeAlso">socket_create()</a> - 创建一个套接字（通讯节点）</span></li>
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</ul>
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</p>
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</div>
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</div></div></div></body></html> |