tbody>
</table>
<p>Returns TRUE if the application is run through the command line
and FALSE if not.</p>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">This function checks both if the <code class="docutils literal"><span class="pre">PHP_SAPI</span></code> value is &#8216;cli&#8217;
or if the <code class="docutils literal"><span class="pre">STDIN</span></code> constant is defined.</p>
</div>
</dd></dl>

<dl class="function">
<dt id="function_usable">
<code class="de