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<title>Connect to the remote TCP or UDP port.</title>
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<h1 class="refname">Swoole\Client::connect</h1>
<p class="verinfo">(PHP 5 >= 5.2.0, PHP 7, PECL swoole >= 1.9.0)</p><p class="refpurpose"><span class="refname">Swoole\Client::connect</span> — <span class="dc-title">Connect to the remote TCP or UDP port.</span></p>
</div>
<div class="refsect1 description" id="refsect1-swoole-client.connect-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="modifier">public</span> <span class="type">bool</span> <span class="methodname"><strong>Swoole\Client::connect</strong></span>
( <span class="methodparam"><span class="type">string</span> <code class="parameter">$host</code></span>
[, <span class="methodparam"><span class="type">integer</span> <code class="parameter">$port</code></span>
[, <span class="methodparam"><span class="type">integer</span> <code class="parameter">$timeout</code></span>
[, <span class="methodparam"><span class="type">integer</span> <code class="parameter">$flag</code></span>
]]] )</div>
<p class="para rdfs-comment">
</p>
</div>
<div class="refsect1 parameters" id="refsect1-swoole-client.connect-parameters">
<h3 class="title">Parameters</h3>
<dl>
<dt>
<code class="parameter">host</code></dt>
<dd>
<p class="para">
The host name of the remote address.
</p>
</dd>
<dt>
<code class="parameter">port</code></dt>
<dd>
<p class="para">
The port number of the remote address.
</p>
</dd>
<dt>
<code class="parameter">timeout</code></dt>
<dd>
<p class="para">
The timeout(second) of connect/send/recv, the dafault value is 0.1s
</p>
</dd>
<dt>
<code class="parameter">flag</code></dt>
<dd>
<p class="para">
If the type of client is UDP, the $flag means if to enable the configuration udp_connect.
If the configuration udp_connect is enabled, the client will only receive the data from specified ip:port.
If the type of client is TCP and the $flag is set to 1, it must use swoole_client_select to check the connection status before send/recv.
</p>
</dd>
</dl>
</div>
<div class="refsect1 returnvalues" id="refsect1-swoole-client.connect-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Whether the connection is established.
</p>
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