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131 lines
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<!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>Create a special or ordinary file (POSIX.1)</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.posix-mknod" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">posix_mknod</h1>
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<p class="verinfo">(PHP 5 >= 5.1.0, PHP 7)</p><p class="refpurpose"><span class="refname">posix_mknod</span> — <span class="dc-title">
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Create a special or ordinary file (POSIX.1)
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</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.posix-mknod-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>posix_mknod</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$pathname</code></span>
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, <span class="methodparam"><span class="type">int</span> <code class="parameter">$mode</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$major</code><span class="initializer"> = 0</span></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$minor</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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Creates a special or ordinary file.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.posix-mknod-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">pathname</code></dt>
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<dd>
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<p class="para">
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The file to create
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</p>
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</dd>
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<dt>
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<code class="parameter">mode</code></dt>
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<dd>
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<p class="para">
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This parameter is constructed by a bitwise OR between file type (one of
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the following constants: <strong><code>POSIX_S_IFREG</code></strong>,
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<strong><code>POSIX_S_IFCHR</code></strong>, <strong><code>POSIX_S_IFBLK</code></strong>,
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<strong><code>POSIX_S_IFIFO</code></strong> or
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<strong><code>POSIX_S_IFSOCK</code></strong>) and permissions.
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</p>
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</dd>
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<dt>
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<code class="parameter">major</code></dt>
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<dd>
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<p class="para">
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The major device kernel identifier (required to pass when using
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<strong><code>S_IFCHR</code></strong> or <strong><code>S_IFBLK</code></strong>).
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</p>
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</dd>
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<dt>
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<code class="parameter">minor</code></dt>
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<dd>
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<p class="para">
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The minor device kernel identifier.
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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.posix-mknod-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 examples" id="refsect1-function.posix-mknod-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-4350">
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<p><strong>Example #1 A <span class="function"><strong>posix_mknod()</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 /><br />$file </span><span style="color: #007700">= </span><span style="color: #DD0000">'/tmp/tmpfile'</span><span style="color: #007700">; </span><span style="color: #FF8000">// file name<br /></span><span style="color: #0000BB">$type </span><span style="color: #007700">= </span><span style="color: #0000BB">POSIX_S_IFBLK</span><span style="color: #007700">; </span><span style="color: #FF8000">// file type<br /></span><span style="color: #0000BB">$permissions </span><span style="color: #007700">= </span><span style="color: #0000BB">0777</span><span style="color: #007700">; </span><span style="color: #FF8000">// octal<br /></span><span style="color: #0000BB">$major </span><span style="color: #007700">= </span><span style="color: #0000BB">1</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$minor </span><span style="color: #007700">= </span><span style="color: #0000BB">8</span><span style="color: #007700">; </span><span style="color: #FF8000">// /dev/random<br /><br /></span><span style="color: #007700">if (!</span><span style="color: #0000BB">posix_mknod</span><span style="color: #007700">(</span><span style="color: #0000BB">$file</span><span style="color: #007700">, </span><span style="color: #0000BB">$type </span><span style="color: #007700">| </span><span style="color: #0000BB">$permissions</span><span style="color: #007700">, </span><span style="color: #0000BB">$major</span><span style="color: #007700">, </span><span style="color: #0000BB">$minor</span><span style="color: #007700">)) {<br /> die(</span><span style="color: #DD0000">'Error ' </span><span style="color: #007700">. </span><span style="color: #0000BB">posix_get_last_error</span><span style="color: #007700">() . </span><span style="color: #DD0000">': ' </span><span style="color: #007700">. </span><span style="color: #0000BB">posix_strerror</span><span style="color: #007700">(</span><span style="color: #0000BB">posix_get_last_error</span><span style="color: #007700">()));<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 seealso" id="refsect1-function.posix-mknod-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="posix_mkfifo.html" class="function" rel="rdfs-seeAlso">posix_mkfifo()</a> - Create a fifo special file (a named pipe)</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> |