📄 function.socket-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>Return a string describing a socket error</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.socket-shutdown.html">socket_shutdown</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.socket-write.html">socket_write</a></div> <div class="up"><a href="ref.sockets.html">Socket Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.socket-strerror" class="refentry"> <div class="refnamediv"> <h1 class="refname">socket_strerror</h1> <p class="verinfo">(PHP 4 >= 4.0.7, PHP 5)</p><p class="refpurpose"><span class="refname">socket_strerror</span> — <span class="dc-title">Return a string describing a socket error</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>socket_strerror</b></b></span> ( <span class="methodparam"><span class="type">int</span> <tt class="parameter">$errno</tt></span> )</div> <p class="para rdfs-comment"> <b>socket_strerror()</b> takes as its <i><tt class="parameter">errno</tt></i> parameter a socket error code as returned by <a href="function.socket-last-error.html" class="function">socket_last_error()</a> and returns the corresponding explanatory text. </p> <blockquote><p><b class="note">Note</b>: Although the error messages generated by the socket extension are in English, the system messages retrieved with this function will appear depending on the current locale (<b><tt>LC_MESSAGES</tt></b>). <br /> </p></blockquote> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">errno</tt></i></span> <dd> <p class="para"> A valid socket error number, likely produced by <a href="function.socket-last-error.html" class="function">socket_last_error()</a>. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns the error message associated with the <i><tt class="parameter">errno</tt></i> parameter. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 <b>socket_strerror()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">false </span><span style="color: #007700">== (</span><span style="color: #0000BB">$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></span></code></div> </div> <div class="example-contents"><p> The expected output from the above example (assuming the script is not run with root privileges): </p></div> <div class="example-contents"><pre><div class="cdata"><pre>socket_bind() failed: reason: Permission denied</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.socket-accept.html" class="function" rel="rdfs-seeAlso">socket_accept()</a></li> <li class="member"><a href="function.socket-bind.html" class="function" rel="rdfs-seeAlso">socket_bind()</a></li> <li class="member"><a href="function.socket-connect.html" class="function" rel="rdfs-seeAlso">socket_connect()</a></li> <li class="member"><a href="function.socket-listen.html" class="function" rel="rdfs-seeAlso">socket_listen()</a></li> <li class="member"><a href="function.socket-create.html" class="function" rel="rdfs-seeAlso">socket_create()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.socket-shutdown.html">socket_shutdown</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.socket-write.html">socket_write</a></div> <div class="up"><a href="ref.sockets.html">Socket Functions</a></div> <div 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