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<title>Create a handle to used communicate with zookeeper</title>
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<h1 class="refname">Zookeeper::__construct</h1>
<p class="verinfo">(PECL zookeeper >= 0.1.0)</p><p class="refpurpose"><span class="refname">Zookeeper::__construct</span> — <span class="dc-title">Create a handle to used communicate with zookeeper</span></p>
</div>
<div class="refsect1 description" id="refsect1-zookeeper.construct-description">
<h3 class="title">Description</h3>
<div class="constructorsynopsis dc-description">
<span class="modifier">public</span>
<span class="methodname"><strong>Zookeeper::__construct</strong></span>
([ <span class="methodparam"><span class="type">string</span> <code class="parameter">$host</code><span class="initializer"> = ''</span></span>
[, <span class="methodparam"><span class="type"><a href="language.types.callable.html" class="type callable">callable</a></span> <code class="parameter">$watcher_cb</code><span class="initializer"> = <strong><code>NULL</code></strong></span></span>
[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$recv_timeout</code><span class="initializer"> = 10000</span></span>
]]] )</div>
<p class="para rdfs-comment">
This method creates a new handle and a zookeeper session that corresponds to that handle. Session establishment is asynchronous, meaning that the session should not be considered established until (and unless) an event of state ZOO_CONNECTED_STATE is received.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-zookeeper.construct-parameters">
<h3 class="title">Parameters</h3>
<dl>
<dt>
<code class="parameter">host</code></dt>
<dd>
<p class="para">
comma separated host:port pairs, each corresponding to a zk server. e.g. "127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002"
</p>
</dd>
<dt>
<code class="parameter">watcher_cb</code></dt>
<dd>
<p class="para">
the global watcher callback function. When notifications are triggered this function will be invoked.
</p>
</dd>
<dt>
<code class="parameter">recv_timeout</code></dt>
<dd>
<p class="para">
the timeout for this session, only valid if the connections is currently connected (ie. last watcher state is ZOO_CONNECTED_STATE).
</p>
</dd>
</dl>
</div>
<div class="refsect1 errors" id="refsect1-zookeeper.construct-errors">
<h3 class="title">Errors/Exceptions</h3>
<p class="para">
This method emits PHP error/warning when parameters count or types are wrong or could not init instance.
</p>
<div class="caution"><strong class="caution">Caution</strong>
<p class="para">
Since version 0.3.0, this method emits <strong class="classname">ZookeeperException</strong> and it's derivatives.
</p>
</div>
</div>
<div class="refsect1 seealso" id="refsect1-zookeeper.construct-seealso">
<h3 class="title">See Also</h3>
<ul class="simplelist">
<li class="member"><span class="methodname"><a href="zookeeper.connect.html" class="methodname" rel="rdfs-seeAlso">Zookeeper::connect()</a> - Create a handle to used communicate with zookeeper</span></li>
<li class="member"><strong class="classname">ZookeeperException</strong></li>
</ul>
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