>
</td>
</tr>
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">bool</p>
</td>
</tr>
</tbody>
</table>
<p><code class="docutils literal"><span class="pre">is_writable()</span></code> returns TRUE on Windows servers when you really can&#8217;t
write to the file as the OS reports to PHP as FALSE only if the
read-only attribute is marked.</p>
<p>This function determines if a file is actually writable by attempting
to write to it first. Generally on