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<div id="mongodb-driver-monitoring-serverheartbeatsucceededevent.getdurationmicros" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">MongoDB\Driver\Monitoring\ServerHeartbeatSucceededEvent::getDurationMicros</h1>
  <p class="verinfo">(mongodb &gt;=1.13.0)</p><p class="refpurpose"><span class="refname">MongoDB\Driver\Monitoring\ServerHeartbeatSucceededEvent::getDurationMicros</span> &mdash; <span class="dc-title">Returns the heartbeat&#039;s duration in microseconds</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-mongodb-driver-monitoring-serverheartbeatsucceededevent.getdurationmicros-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="modifier">final</span> <span class="modifier">public</span> <span class="methodname"><strong>MongoDB\Driver\Monitoring\ServerHeartbeatSucceededEvent::getDurationMicros</strong></span>(): <span class="type"><a href="language.types.integer.php" class="type int">int</a></span></div>

  <p class="para rdfs-comment">
   The heartbeat&#039;s duration is a calculated value that includes the time to send
   the message and receive the reply from the server.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-mongodb-driver-monitoring-serverheartbeatsucceededevent.getdurationmicros-parameters">
  <h3 class="title">参数</h3>
  <p class="para">此函数没有参数。</p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-mongodb-driver-monitoring-serverheartbeatsucceededevent.getdurationmicros-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns the heartbeat&#039;s duration in microseconds.
  </p>
 </div>


 <div class="refsect1 errors" id="refsect1-mongodb-driver-monitoring-serverheartbeatsucceededevent.getdurationmicros-errors">
  <h3 class="title">错误／异常</h3>
  <ul class="simplelist">
   <li>Throws <span class="classname"><a href="class.mongodb-driver-exception-invalidargumentexception.php" class="classname">MongoDB\Driver\Exception\InvalidArgumentException</a></span> on argument parsing errors.</li>
  </ul>
 </div>


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