ed as an argument?</span>
        <span class="p">{</span>

        <span class="p">}</span>
<span class="p">}</span>
</pre></div>
</div>
<p><strong>CORRECT</strong>:</p>
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">function</span> <span class="nf">build_string</span><span class="p">(</span><span class="nv">$str</span> <span class="o">=</span> <span class="s2">&quot;&quot;</span><span class="p">)</span>
<span class="p">{</span>
        <span class="k">if</span> <span cl