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<title>Set the size for future connection pools.</title>
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<h1 class="refname">Mongo::setPoolSize</h1>
<p class="verinfo">(PECL mongo >=1.2.0)</p><p class="refpurpose"><span class="refname">Mongo::setPoolSize</span> — <span class="dc-title">Set the size for future connection pools.</span></p>
</div>
<div class="refsect1 description" id="refsect1-mongo.setpoolsize-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="modifier">public</span> <span class="modifier">static</span> <span class="type">bool</span> <span class="methodname"><strong>Mongo::setPoolSize</strong></span>
( <span class="methodparam"><span class="type">int</span> <code class="parameter">$size</code></span>
)</div>
<div class="warning"><strong class="warning">Warning</strong>
<p class="simpara">This method has been <em class="emphasis">DEPRECATED</em> as of version
1.2.3. Relying on this feature is highly discouraged. Please use
<span class="function"><a href="mongopool.setsize.html" class="function">MongoPool::setSize()</a></span> instead.
</p>
</div>
<p class="para">
Sets the max number of connections new pools will be able to create.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-mongo.setpoolsize-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term">
<em><code class="parameter">size</code></em>
</span>
<dd>
<p class="para">
The max number of connections future pools will be able to create.
Negative numbers mean that the pool will spawn an infinite number of
connections.
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-mongo.setpoolsize-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns the former value of pool size.
</p>
</div>
<div class="refsect1 examples" id="refsect1-mongo.setpoolsize-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="mongo.setpoolsize.example.basic">
<p><strong>Example #1 <span class="function"><strong>Mongo::setPoolSize()</strong></span> example</strong></p>
<div class="example-contents"><p>
If you set the pool size to <em>n</em> and then create
<em>n</em> connections, attempting to create an
<em>n+1</em>st connection will throw a
<a href="class.mongoconnectionexception.html" class="classname">MongoConnectionException</a>.
</p></div>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /><br /></span><span style="color: #FF8000">// only allow one connection to a server<br /></span><span style="color: #0000BB">Mongo</span><span style="color: #007700">::</span><span style="color: #0000BB">setPoolSize</span><span style="color: #007700">(</span><span style="color: #0000BB">1</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// creates one connection to localhost:27017<br /></span><span style="color: #0000BB">$m1 </span><span style="color: #007700">= new </span><span style="color: #0000BB">Mongo</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">// attempt to create a second connection to localhost:27017<br />// only one connection is allowed, so this will throw an exception<br /></span><span style="color: #0000BB">$m2 </span><span style="color: #007700">= new </span><span style="color: #0000BB">Mongo</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
<div class="example-contents"><p>The above example will output
something similar to:</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
Fatal error: Uncaught exception 'MongoConnectionException' with message 'no more connections in pool' in /path/to/php/script.php:10
Stack trace:
#0 /path/to/php/script.php(10): Mongo->__construct()
#1 {main}
thrown in /path/to/php/script.php on line 10
</pre></div>
</div>
</div>
</p>
</div>
<div class="refsect1 seealso" id="refsect1-mongo.setpoolsize-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="mongo.getpoolsize.html" class="function" rel="rdfs-seeAlso">Mongo::getPoolSize()</a> - Get pool size for connection pools</span></li>
<li class="member"> <span class="function"><a href="mongo.pooldebug.html" class="function" rel="rdfs-seeAlso">Mongo::poolDebug()</a> - Returns information about all connection pools.</span></li>
<li class="member">The <a href="mongo.connecting.html" class="link">connection</a> documentation.</li>
</ul>
</p>
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