Adding a note that shutdown functions won't be executed if the script gets a SIGTERM or SIGKILL, though you can pcntl_signal() for the TERM and exit;. (doc #63275)

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Provided by anonymous #22227 (mail+php@requinix.net)

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@328335 c90b9560-bf6c-de11-be94-00142212c4b1

reference/funchand/functions/register-shutdown-function.xml

@@ -142,6 +142,14 @@ register_shutdown_function('shutdown');
     under some web servers, e.g. Apache.
    </para>
   </note>
+  <note>
+   <para>
+    Shutdown functions will not be executed if the process is killed with a SIGTERM
+    or SIGKILL signal. While you cannot intercept a SIGKILL, you can use <function>pcntl_signal</function>
+    to install a handler for a SIGTERM which uses <function>exit</function> to
+    end cleanly.
+   </para>
+  </note>
  </refsect1>
 
  <refsect1 role="seealso">