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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Create a special or ordinary file (POSIX.1)</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.posix-mkfifo.html">posix_mkfifo</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.posix-setegid.html">posix_setegid</a></div> <div class="up"><a href="ref.posix.html">POSIX Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.posix-mknod" class="refentry"> <div class="refnamediv"> <h1 class="refname">posix_mknod</h1> <p class="verinfo">(PHP 5 >= 5.1.0)</p><p class="refpurpose"><span class="refname">posix_mknod</span> — <span class="dc-title"> Create a special or ordinary file (POSIX.1) </span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">bool</span> <span class="methodname"><b><b>posix_mknod</b></b></span> ( <span class="methodparam"><span class="type">string</span> <tt class="parameter">$pathname</tt></span> , <span class="methodparam"><span class="type">int</span> <tt class="parameter">$mode</tt></span> [, <span class="methodparam"><span class="type">int</span> <tt class="parameter">$major</tt></span> [, <span class="methodparam"><span class="type">int</span> <tt class="parameter">$minor</tt></span> ]] )</div> <p class="para rdfs-comment"> Creates a special or ordinary file. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">pathname</tt></i></span> <dd> <p class="para"> The file to create </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">mode</tt></i></span> <dd> <p class="para"> This parameter is constructed by a bitwise OR between file type (one of the following constants: <b><tt>POSIX_S_IFREG</tt></b>, <b><tt>POSIX_S_IFCHR</tt></b>, <b><tt>POSIX_S_IFBLK</tt></b>, <b><tt>POSIX_S_IFIFO</tt></b> or <b><tt>POSIX_S_IFSOCK</tt></b>) and permissions. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">major</tt></i></span> <dd> <p class="para"> The major device kernel identifier (required to pass when using <b><tt>S_IFCHR</tt></b> or <b><tt>S_IFBLK</tt></b>). </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">minor</tt></i></span> <dd> <p class="para"> The minor device kernel identifier (defaults to 0). </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns <b><tt>TRUE</tt></b> on success or <b><tt>FALSE</tt></b> on failure. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 A <b>posix_mknod()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><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></span></code></div> </div> </div> </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.posix-mkfifo.html" class="function" rel="rdfs-seeAlso">posix_mkfifo()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; 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