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jordikroon merged 2 commits into from
Jul 3, 2026
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apache2.xml Add notes about FallbackResource #4580

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apache2.xml Add notes about FallbackResource
andrewnicols Apr 3, 2025
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jordikroon Jul 3, 2026
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28 changes: 28 additions & 0 deletions install/unix/apache2.xml
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Expand Up @@ -265,6 +265,34 @@ LoadModule php7_module modules/libphp7.so
</programlisting>
</informalexample>

<simpara>
To allow use of a PHP file as the default handler if no other handler is found,
for example when using a routing engine, the <literal>FallbackResource</literal> directive may be used.
This is available in Apache 2.4.4 and later.
</simpara>

<simpara>
Because the <literal>SetHandler</literal> directive is applied whether the file exists or not, and the
<literal>FallbackResource</literal> is only applied if a handler has not already been set,
you may need to use the <literal>If</literal> directive to ensure that the handler is only
applied if the file exists.
This allows the <literal>FallbackResource</literal> to handle paths which end in <literal>.php</literal>
but do not exist, which may be useful for error handling and routing.
</simpara>

<informalexample>
<programlisting role="apache-conf">
<![CDATA[
<FilesMatch "\.php$">
<If "-f %{REQUEST_FILENAME}">
SetHandler application/x-httpd-php
</If>
</FilesMatch>
FallbackResource /index.php
]]>
</programlisting>
</informalexample>

<para>
<literal>mod_rewrite</literal> may be used to allow any arbitrary <literal>.php</literal> file to be displayed
as syntax-highlighted source code, without having to rename or copy it
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