function.socket-create-listen.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>Opens a socket on port to accept connections</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-connect.html">socket_connect</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.socket-create-pair.html">socket_create_pair</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-create-listen" class="refentry"> <div class="refnamediv"> <h1 class="refname">socket_create_listen</h1> <p class="verinfo">(PHP 4 >= 4.0.7, PHP 5)</p><p class="refpurpose"><span class="refname">socket_create_listen</span> — <span class="dc-title">Opens a socket on port to accept connections </span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">resource</span> <span class="methodname"><b><b>socket_create_listen</b></b></span> ( <span class="methodparam"><span class="type">int</span> <tt class="parameter">$port</tt></span> [, <span class="methodparam"><span class="type">int</span> <tt class="parameter">$backlog</tt></span> ] )</div> <p class="para rdfs-comment"> <b>socket_create_listen()</b> creates a new socket resource of type <b><tt>AF_INET</tt></b> listening on <em class="emphasis">all</em> local interfaces on the given port waiting for new connections. </p> <p class="para"> This function is meant to ease the task of creating a new socket which only listens to accept new connections. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">port</tt></i></span> <dd> <p class="para"> The port on which to listen on all interfaces. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">backlog</tt></i></span> <dd> <p class="para"> The <i><tt class="parameter">backlog</tt></i> parameter defines the maximum length the queue of pending connections may grow to. <b><tt>SOMAXCONN</tt></b> may be passed as <i><tt class="parameter">backlog</tt></i> parameter, see <a href="function.socket-listen.html" class="function">socket_listen()</a> for more information. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> <b>socket_create_listen()</b> returns a new socket resource on success or <b><tt>FALSE</tt></b> on error. The error code can be retrieved with <a href="function.socket-last-error.html" class="function">socket_last_error()</a>. This code may be passed to <a href="function.socket-strerror.html" class="function">socket_strerror()</a> to get a textual explanation of the error. </p> </div> <div class="refsect1 notes"> <h3 class="title">Notes</h3> <blockquote><p><b class="note">Note</b>: If you want to create a socket which only listens on a certain interface you need to use <a href="function.socket-create.html" class="function">socket_create()</a>, <a href="function.socket-bind.html" class="function">socket_bind()</a> and <a href="function.socket-listen.html" class="function">socket_listen()</a>. <br /> </p></blockquote> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.socket-create.html" class="function" rel="rdfs-seeAlso">socket_create()</a></li> <li class="member"><a href="function.socket-create-pair.html" class="function" rel="rdfs-seeAlso">socket_create_pair()</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-listen.html" class="function" rel="rdfs-seeAlso">socket_listen()</a></li> <li class="member"><a href="function.socket-last-error.html" class="function" rel="rdfs-seeAlso">socket_last_error()</a></li> <li class="member"><a href="function.socket-strerror.html" class="function" rel="rdfs-seeAlso">socket_strerror()</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-connect.html">socket_connect</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.socket-create-pair.html">socket_create_pair</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></body></html>⌨️ 快捷键说明
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