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<h1 class="refname">MongoDB::setWriteConcern</h1>
<p class="verinfo">(PECL mongo >=1.5.0)</p><p class="refpurpose"><span class="refname">MongoDB::setWriteConcern</span> — <span class="dc-title">Set the write concern for this database</span></p>
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<div class="refsect1 description" id="refsect1-mongodb.setwriteconcern-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>MongoDB::setWriteConcern</strong></span>
( <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$w</code></span>
[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$wtimeout</code></span>
] )</div>
</div>
<div class="refsect1 parameters" id="refsect1-mongodb.setwriteconcern-parameters">
<h3 class="title">Parameters</h3>
<dl>
<dt>
<code class="parameter">w</code></dt>
<dd>
<p class="para">The write concern. This may be an integer denoting the number of servers required to acknowledge the write, or a string mode (e.g. "majority").</p></dd>
<dt>
<code class="parameter">wtimeout</code></dt>
<dd>
<p class="para">The maximum number of milliseconds to wait for the server to satisfy the write concern.</p></dd>
</dl>
</div>
<div class="refsect1 returnvalues" id="refsect1-mongodb.setwriteconcern-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">Returns <strong><code>TRUE</code></strong> on success, or <strong><code>FALSE</code></strong> otherwise.</p>
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<div class="refsect1 errors" id="refsect1-mongodb.setwriteconcern-errors">
<h3 class="title">Errors/Exceptions</h3>
<p class="para">Emits <strong><code>E_WARNING</code></strong> if the <em>w</em> parameter is not an integer or string value.</p>
</div>
<div class="refsect1 examples" id="refsect1-mongodb.setwriteconcern-examples">
<h3 class="title">Examples</h3>
<div class="example" id="example-1562">
<p><strong>Example #1 <span class="methodname"><strong>MongoDB::setWriteConcern()</strong></span> example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /><br />$mc </span><span style="color: #007700">= new </span><span style="color: #0000BB">MongoClient</span><span style="color: #007700">(</span><span style="color: #DD0000">'mongodb://rs1.example.com,rs2.example.com'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$db </span><span style="color: #007700">= </span><span style="color: #0000BB">$mc</span><span style="color: #007700">-></span><span style="color: #0000BB">selectDB</span><span style="color: #007700">(</span><span style="color: #DD0000">'test'</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// Require that the majority of servers in the replica set acknowledge writes<br />// within three seconds.<br /></span><span style="color: #0000BB">$db</span><span style="color: #007700">-></span><span style="color: #0000BB">setWriteConcern</span><span style="color: #007700">(</span><span style="color: #DD0000">'majority'</span><span style="color: #007700">, </span><span style="color: #0000BB">3000</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
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</div>
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<div class="refsect1 seealso" id="refsect1-mongodb.setwriteconcern-seealso">
<h3 class="title">See Also</h3>
<ul class="simplelist">
<li class="member">The <a href="mongo.writeconcerns.html" class="link">write concern</a> documentation.</li>
<li class="member"><span class="function"><a href="mongodb.getwriteconcern.html" class="function" rel="rdfs-seeAlso">MongoDB::getWriteConcern()</a> - Get the write concern for this database</span></li>
</ul>
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