<!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>Create a new socket</title>
</head>
<body><div class="manualnavbar" style="text-align: center;">
<div class="prev" style="text-align: left; float: left;"><a href="zmqcontext.getopt.html">ZMQContext::getOpt</a></div>
<div class="next" style="text-align: right; float: right;"><a href="zmqcontext.ispersistent.html">ZMQContext::isPersistent</a></div>
<div class="up"><a href="class.zmqcontext.html">ZMQContext</a></div>
<div class="home"><a href="index.html">PHP Manual</a></div>
</div><hr /><div id="zmqcontext.getsocket" class="refentry">
<div class="refnamediv">
<h1 class="refname">ZMQContext::getSocket</h1>
<p class="verinfo">(PECL zmq >= 0.5.0)</p><p class="refpurpose"><span class="refname">ZMQContext::getSocket</span> — <span class="dc-title">Create a new socket</span></p>
</div>
<div class="refsect1 description" id="refsect1-zmqcontext.getsocket-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="modifier">public</span> <span class="type"><a href="class.zmqsocket.html" class="type ZMQSocket">ZMQSocket</a></span> <span class="methodname"><strong>ZMQContext::getSocket</strong></span>
( <span class="methodparam"><span class="type">integer</span> <code class="parameter">$type</code></span>
[, <span class="methodparam"><span class="type">string</span> <code class="parameter">$persistent_id</code><span class="initializer"> = null</span></span>
[, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.callback" class="type callback">callback</a></span> <code class="parameter">$on_new_socket</code><span class="initializer"> = null</span></span>
]] )</div>
<p class="para rdfs-comment">
Shortcut for creating new sockets from the context. If the context is not persistent the <em><code class="parameter">persistent_id</code></em>
parameter is ignored and the socket falls back to being non-persistent. The <em><code class="parameter">on_new_socket</code></em> is called only
when a new underlying socket structure is created.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-zmqcontext.getsocket-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">type</code></em></span>
<dd>
<p class="para">
<strong><code>ZMQ::SOCKET_*</code></strong> constant to specify socket type.
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">persistent_id</code></em></span>
<dd>
<p class="para">
If <em><code class="parameter">persistent_id</code></em> is specified the socket will be persisted over multiple requests.
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">on_new_socket</code></em></span>
<dd>
<p class="para">
Callback function, which is executed when a new socket structure is created. This function does not get invoked
if the underlying persistent connection is re-used. The callback takes ZMQSocket and persistent_id as two arguments.
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 examples" id="refsect1-zmqcontext.getsocket-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-4695">
<p><strong>Example #1 A <span class="function"><strong>ZMQContext()</strong></span> example</strong></p>
<div class="example-contents"><p>
Basic usage
</p></div>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /></span><span style="color: #FF8000">/* Allocate a new context */<br /></span><span style="color: #0000BB">$context </span><span style="color: #007700">= new </span><span style="color: #0000BB">ZMQContext</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">/* Create a new socket */<br /></span><span style="color: #0000BB">$socket </span><span style="color: #007700">= </span><span style="color: #0000BB">$context</span><span style="color: #007700">-></span><span style="color: #0000BB">getSocket</span><span style="color: #007700">(</span><span style="color: #0000BB">ZMQ</span><span style="color: #007700">::</span><span style="color: #0000BB">SOCKET_REQ</span><span style="color: #007700">, </span><span style="color: #DD0000">'my sock'</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* Connect the socket */<br /></span><span style="color: #0000BB">$socket</span><span style="color: #007700">-></span><span style="color: #0000BB">connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"tcp://example.com:1234"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* Send a request */<br /></span><span style="color: #0000BB">$socket</span><span style="color: #007700">-></span><span style="color: #0000BB">send</span><span style="color: #007700">(</span><span style="color: #DD0000">"Hello there"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* Receive back the response */<br /></span><span style="color: #0000BB">$message </span><span style="color: #007700">= </span><span style="color: #0000BB">$socket</span><span style="color: #007700">-></span><span style="color: #0000BB">recv</span><span style="color: #007700">();<br />echo </span><span style="color: #DD0000">"Received message: </span><span style="color: #007700">{</span><span style="color: #0000BB">$message</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>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-zmqcontext.getsocket-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns a ZMQSocket object on success. Throws ZMQSocketException on error.
</p>
</div>
</div><hr /><div class="manualnavbar" style="text-align: center;">
<div class="prev" style="text-align: left; float: left;"><a href="zmqcontext.getopt.html">ZMQContext::getOpt</a></div>
<div class="next" style="text-align: right; float: right;"><a href="zmqcontext.ispersistent.html">ZMQContext::isPersistent</a></div>
<div class="up"><a href="class.zmqcontext.html">ZMQContext</a></div>
<div class="home"><a href="index.html">PHP Manual</a></div>
</div></body></html>
