<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Socket Errors</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="sockets.examples.html">Examples</a></div> <div class="next" style="text-align: right; float: right;"><a href="ref.sockets.html">Socket Functions</a></div> <div class="up"><a href="book.sockets.html">Sockets</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="sockets.errors" class="chapter"> <h1>Socket Errors</h1> <p class="para"> The socket extension was written to provide a usable interface to the powerful BSD sockets. Care has been taken that the functions work equally well on Win32 and Unix implementations. Almost all of the sockets functions may fail under certain conditions and therefore emit an <strong><code>E_WARNING</code></strong> message describing the error. Sometimes this doesn't happen to the desire of the developer. For example the function <span class="function"><a href="function.socket-read.html" class="function">socket_read()</a></span> may suddenly emit an <strong><code>E_WARNING</code></strong> message because the connection broke unexpectedly. It's common to suppress the warning with the <em>@</em>-operator and catch the error code within the application with the <span class="function"><a href="function.socket-last-error.html" class="function">socket_last_error()</a></span> function. You may call the <span class="function"><a href="function.socket-strerror.html" class="function">socket_strerror()</a></span> function with this error code to retrieve a string describing the error. See their description for more information. </p> <blockquote class="note"><p><strong class="note">Note</strong>: <p class="para"> The <strong><code>E_WARNING</code></strong> messages generated by the socket extension are in English though the retrieved error message will appear depending on the current locale (<strong><code>LC_MESSAGES</code></strong>): <div class="example-contents screen"> <div class="cdata"><pre> Warning - socket_bind() unable to bind address [98]: Die Adresse wird bereits verwendet </pre></div> </div> </p> </p></blockquote> </div> <hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="sockets.examples.html">Examples</a></div> <div class="next" style="text-align: right; float: right;"><a href="ref.sockets.html">Socket Functions</a></div> <div class="up"><a href="book.sockets.html">Sockets</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>
