function.posix-strerror.html
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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>Retrieve the system error message associated with the given errno</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-setuid.html">posix_setuid</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.posix-times.html">posix_times</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-strerror" class="refentry"> <div class="refnamediv"> <h1 class="refname">posix_strerror</h1> <p class="verinfo">(PHP 4 >= 4.2.0, PHP 5)</p><p class="refpurpose"><span class="refname">posix_strerror</span> — <span class="dc-title">Retrieve the system error message associated with the given errno</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">string</span> <span class="methodname"><b><b>posix_strerror</b></b></span> ( <span class="methodparam"><span class="type">int</span> <tt class="parameter">$errno</tt></span> )</div> <p class="para rdfs-comment"> Returns the POSIX system error message associated with the given <i><tt class="parameter">errno</tt></i>. You may get the <i><tt class="parameter">errno</tt></i> parameter by calling <a href="function.posix-get-last-error.html" class="function">posix_get_last_error()</a>. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">errno</tt></i></span> <dd> <p class="para"> A POSIX error number, returned by <a href="function.posix-get-last-error.html" class="function">posix_get_last_error()</a>. If set to 0, then the string "Success" is returned. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns the error message, as a string. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 <b>posix_strerror()</b> example</b></p> <div class="example-contents"><p>This example will attempt to kill a process which does not exist, then will print out the corresponding error message.</p></div> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />posix_kill</span><span style="color: #007700">(</span><span style="color: #0000BB">50</span><span style="color: #007700">,</span><span style="color: #0000BB">SIGKILL</span><span style="color: #007700">);<br />echo </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">()).</span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> <div class="example-contents"><p>The above example will output something similar to:</p></div> <div class="example-contents"><pre><div class="cdata"><pre>No such process</pre></div> </pre></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-get-last-error.html" class="function" rel="rdfs-seeAlso">posix_get_last_error()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.posix-setuid.html">posix_setuid</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.posix-times.html">posix_times</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></body></html>⌨️ 快捷键说明
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