diff --git a/appendices/reserved.constants.oracle.xml b/appendices/reserved.constants.oracle.xml
deleted file mode 100644
index bdf9268495..0000000000
--- a/appendices/reserved.constants.oracle.xml
+++ /dev/null
@@ -1,92 +0,0 @@
-<?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.2 $ -->
- <refentry id="reserved.constants.oracle">
-  <refnamediv>
-   <refname>oracle Predefined Constants</refname>
-   <refpurpose>Constants defined in the <link linkend="ref.oracle">oracle</link> extension</refpurpose>
-  </refnamediv>
-  <refsect1>
-   <title>Description</title>
-   <simpara>
-    These constants are defined by the <link
-    linkend="ref.oracle"> oracle</link> extension, and
-    will only be available when that extension has either been
-    compiled into PHP or dynamically loaded at runtime.
-   </simpara>
-   <variablelist>
-    <varlistentry>
-     <term>
-      <constant>ORA_BIND_INOUT</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>ORA_BIND_IN</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>ORA_BIND_OUT</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>ORA_FETCHINTO_ASSOC</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>ORA_FETCHINTO_NULLS</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-   </variablelist>
-  </refsect1>
- </refentry>
-
-<!-- Keep this comment at the end of the file
-Local variables:
-mode: sgml
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--->
diff --git a/appendices/reserved.constants.pcre.xml b/appendices/reserved.constants.pcre.xml
deleted file mode 100644
index c138a8f290..0000000000
--- a/appendices/reserved.constants.pcre.xml
+++ /dev/null
@@ -1,92 +0,0 @@
-<?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.2 $ -->
- <refentry id="reserved.constants.pcre">
-  <refnamediv>
-   <refname>pcre Predefined Constants</refname>
-   <refpurpose>Constants defined in the <link linkend="ref.pcre">pcre</link> extension</refpurpose>
-  </refnamediv>
-  <refsect1>
-   <title>Description</title>
-   <simpara>
-    These constants are defined by the <link
-    linkend="ref.pcre"> pcre</link> extension, and
-    will only be available when that extension has either been
-    compiled into PHP or dynamically loaded at runtime.
-   </simpara>
-   <variablelist>
-    <varlistentry>
-     <term>
-      <constant>PREG_PATTERN_ORDER</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>PREG_SET_ORDER</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>PREG_SPLIT_NO_EMPTY</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>PREG_SPLIT_DELIM_CAPTURE</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>PREG_GREP_INVERT</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-   </variablelist>
-  </refsect1>
- </refentry>
-
-<!-- Keep this comment at the end of the file
-Local variables:
-mode: sgml
-sgml-omittag:t
-sgml-shorttag:t
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--->
diff --git a/appendices/reserved.constants.pspell.xml b/appendices/reserved.constants.pspell.xml
deleted file mode 100644
index f53af4fb4a..0000000000
--- a/appendices/reserved.constants.pspell.xml
+++ /dev/null
@@ -1,81 +0,0 @@
-<?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.2 $ -->
- <refentry id="reserved.constants.pspell">
-  <refnamediv>
-   <refname>pspell Predefined Constants</refname>
-   <refpurpose>Constants defined in the <link linkend="ref.pspell">pspell</link> extension</refpurpose>
-  </refnamediv>
-  <refsect1>
-   <title>Description</title>
-   <simpara>
-    These constants are defined by the <link
-    linkend="ref.pspell"> pspell</link> extension, and
-    will only be available when that extension has either been
-    compiled into PHP or dynamically loaded at runtime.
-   </simpara>
-   <variablelist>
-    <varlistentry>
-     <term>
-      <constant>PSPELL_FAST</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>PSPELL_NORMAL</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>PSPELL_BAD_SPELLERS</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>PSPELL_RUN_TOGETHER</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-   </variablelist>
-  </refsect1>
- </refentry>
-
-<!-- Keep this comment at the end of the file
-Local variables:
-mode: sgml
-sgml-omittag:t
-sgml-shorttag:t
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-End:
--->
diff --git a/appendices/reserved.constants.yp.xml b/appendices/reserved.constants.yp.xml
deleted file mode 100644
index 572fa41902..0000000000
--- a/appendices/reserved.constants.yp.xml
+++ /dev/null
@@ -1,202 +0,0 @@
-<?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.3 $ -->
- <refentry id="reserved.constants.yp">
-  <refnamediv>
-   <refname>yp Predefined Constants</refname>
-   <refpurpose>Constants defined in the <link linkend="ref.nis">yp</link> extension</refpurpose>
-  </refnamediv>
-  <refsect1>
-   <title>Description</title>
-   <simpara>
-    These constants are defined by the <link
-    linkend="ref.nis"> yp</link> extension, and
-    will only be available when that extension has either been
-    compiled into PHP or dynamically loaded at runtime.
-   </simpara>
-   <variablelist>
-    <varlistentry>
-     <term>
-      <constant>YPERR_BADARGS</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>YPERR_BADDB</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>YPERR_BUSY</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>YPERR_DOMAIN</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>YPERR_KEY</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>YPERR_MAP</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>YPERR_NODOM</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>YPERR_NOMORE</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>YPERR_PMAP</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>YPERR_RESRC</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>YPERR_RPC</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>YPERR_YPBIND</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>YPERR_YPERR</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>YPERR_YPSERV</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-    <varlistentry>
-     <term>
-      <constant>YPERR_VERS</constant> 
-      (<link linkend="language.types.integer">integer</link>)
-     </term>
-     <listitem>
-      <simpara>
-       
-      </simpara>
-     </listitem>
-    </varlistentry>
-   </variablelist>
-  </refsect1>
- </refentry>
-
-<!-- Keep this comment at the end of the file
-Local variables:
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