class="phpdocumentor-signature__argument__return-type">string&nbsp;</span><span class="phpdocumentor-signature__argument__name">$pattern</span></span><span>)</span><span> : </span><span class="phpdocumentor-signature__response_type">int</span></code>

    <div class="phpdocumentor-label-line">
        </div>
    
    
        <h5 class="phpdocumentor-argument-list__heading">Parameters</h5>
    <dl class="phpdocumentor-argument-list">
                    <dt class="phpdocumentor-argument-list__entry">
      