ths
are always relative to the main site index.</p>
</div>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">This function acquires an exclusive lock on the file while writing to it.</p>
</div>
</dd></dl>

<dl class="function">
<dt id="delete_files">
<tt class="descname">delete_files</tt><big>(</big><em>$path</em><span class="optional">[</span>, <em>$del_dir = FALSE</em><span class="optional">[</span>, <em>$htdocs = FALSE</em><span class="optional">]</span><span class=