Commit 234685c8 authored by Ken Coar's avatar Ken Coar
Browse files

Added documentation about use of {} in variable substitution. 


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@78156 13f79535-47bb-0310-9956-ffa450edef68
parent d8f7131c

docs/manual/mod/mod_include.html

+13 −0
Original line number Diff line number Diff line
@@ -288,6 +288,19 @@ elements are: 
    <!--#if expr="$a = \$test" -->

</PRE>



<P> If a variable reference needs to be substituted in the middle of a

    string, it can be done by enclosing the reference in braces,

    <EM>&aacute; la</EM> shell substitution:



<PRE>

    &lt;!--#set var="Zed" value="${REMOTE_HOST}_${REQUEST_METHOD}" -->

</PRE>



<P> will result in the <SAMP>Zed</SAMP> variable being set to

    &quot;<SAMP>X_Y</SAMP>&quot; if <SAMP>REMOTE_HOST</SAMP> is

    &quot;<SAMP>X</SAMP>&quot; and <SAMP>REQUEST_METHOD</SAMP> is

    &quot;<SAMP>Y</SAMP>&quot;.



<P> EXAMPLE: the below example will print "in foo" if the DOCUMENT_URI is 

/foo/file.html, "in bar" if it is /bar/file.html and "in neither" 

otherwise: