From 02fd937287f0059e85fe497b68b7b9f0a599750c Mon Sep 17 00:00:00 2001
From: Christoph Michael Becker <cmb@php.net>
Date: Fri, 15 Jul 2016 19:27:35 +0000
Subject: [PATCH] imagexbm() uses $filename also to construct the C identifiers

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@339673 c90b9560-bf6c-de11-be94-00142212c4b1
---
 reference/image/functions/imagexbm.xml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/reference/image/functions/imagexbm.xml b/reference/image/functions/imagexbm.xml
index 3ff2665ff8..2c3cae71d3 100644
--- a/reference/image/functions/imagexbm.xml
+++ b/reference/image/functions/imagexbm.xml
@@ -34,6 +34,13 @@
      <term><parameter>filename</parameter></term>
      <listitem>
       <para>&gd.image.path;</para>
+      <para>
+       The <parameter>filename</parameter> (without the .xbm extension) is also
+       used for the C identifiers of the <acronym>XBM</acronym>, whereby non
+       alphanumeric characters of the current locale are substituted by
+       underscores. If <parameter>filename</parameter> is set to &null;,
+       <literal>image</literal> is used to build the C identifiers.
+      </para>
      </listitem>
     </varlistentry>
     <varlistentry>