diff --git a/reference/datetime/datetimezone/gettransitions.xml b/reference/datetime/datetimezone/gettransitions.xml
index 8cf9c04063..0ca39e0bac 100644
--- a/reference/datetime/datetimezone/gettransitions.xml
+++ b/reference/datetime/datetimezone/gettransitions.xml
@@ -12,8 +12,8 @@
   <para>&style.oop;</para>
   <methodsynopsis role="oop">
    <modifier>public</modifier> <type>array</type><methodname>DateTimeZone::getTransitions</methodname>
-   <methodparam choice="opt"><type>int</type><parameter>timestamp_begin</parameter></methodparam>
-   <methodparam choice="opt"><type>int</type><parameter>timestamp_end</parameter></methodparam>
+   <methodparam choice="opt"><type>int</type><parameter>timestamp_begin</parameter><initializer><constant>PHP_INT_MIN</constant></initializer></methodparam>
+   <methodparam choice="opt"><type>int</type><parameter>timestamp_end</parameter><initializer><constant>PHP_INT_MAX</constant></initializer></methodparam>
   </methodsynopsis>
   <para>&style.procedural;</para>
   <methodsynopsis role="procedural">
diff --git a/reference/dom/domdocument/importnode.xml b/reference/dom/domdocument/importnode.xml
index f5921fb031..6b28227267 100644
--- a/reference/dom/domdocument/importnode.xml
+++ b/reference/dom/domdocument/importnode.xml
@@ -10,7 +10,7 @@
   <methodsynopsis>
    <modifier>public</modifier> <type>DOMNode</type><methodname>DOMDocument::importNode</methodname>
    <methodparam><type>DOMNode</type><parameter>importedNode</parameter></methodparam>
-   <methodparam choice="opt"><type>bool</type><parameter>deep</parameter></methodparam>
+   <methodparam choice="opt"><type>bool</type><parameter>deep</parameter><initializer>&false;</initializer></methodparam>
   </methodsynopsis>
   <para>
    This function returns a copy of the node to import and associates it with 
diff --git a/reference/dom/domdocument/save.xml b/reference/dom/domdocument/save.xml
index 9ecbbb3e89..b39bdd50eb 100644
--- a/reference/dom/domdocument/save.xml
+++ b/reference/dom/domdocument/save.xml
@@ -12,7 +12,7 @@
   <methodsynopsis>
    <modifier>public</modifier> <type>int</type><methodname>DOMDocument::save</methodname>
    <methodparam><type>string</type><parameter>filename</parameter></methodparam>
-   <methodparam choice="opt"><type>int</type><parameter>options</parameter></methodparam>
+   <methodparam choice="opt"><type>int</type><parameter>options</parameter><initializer>0</initializer></methodparam>
   </methodsynopsis>
   <para>
    Creates an XML document from the DOM representation. This function is usually 
diff --git a/reference/dom/domdocument/savexml.xml b/reference/dom/domdocument/savexml.xml
index fc7f5b507f..cbb9d832d4 100644
--- a/reference/dom/domdocument/savexml.xml
+++ b/reference/dom/domdocument/savexml.xml
@@ -12,7 +12,7 @@
   <methodsynopsis>
    <modifier>public</modifier> <type>string</type><methodname>DOMDocument::saveXML</methodname>
    <methodparam choice="opt"><type>DOMNode</type><parameter>node</parameter></methodparam>
-   <methodparam choice="opt"><type>int</type><parameter>options</parameter></methodparam>
+   <methodparam choice="opt"><type>int</type><parameter>options</parameter><initializer>0</initializer></methodparam>
   </methodsynopsis>
   <para>
    Creates an XML document from the DOM representation. This function is usually 
diff --git a/reference/dom/domdocument/schemavalidate.xml b/reference/dom/domdocument/schemavalidate.xml
index 91dad7c87b..30a5a1b311 100644
--- a/reference/dom/domdocument/schemavalidate.xml
+++ b/reference/dom/domdocument/schemavalidate.xml
@@ -12,7 +12,7 @@
   <methodsynopsis>
    <modifier>public</modifier> <type>bool</type><methodname>DOMDocument::schemaValidate</methodname>
    <methodparam><type>string</type><parameter>filename</parameter></methodparam>
-   <methodparam choice="opt"><type>int</type><parameter>flags</parameter></methodparam>
+   <methodparam choice="opt"><type>int</type><parameter>flags</parameter><initializer>0</initializer></methodparam>
   </methodsynopsis>
   <para>
    Validates a document based on the given schema file. 
diff --git a/reference/dom/domdocument/xinclude.xml b/reference/dom/domdocument/xinclude.xml
index b7efd19e5e..44647ac591 100644
--- a/reference/dom/domdocument/xinclude.xml
+++ b/reference/dom/domdocument/xinclude.xml
@@ -11,7 +11,7 @@
   &reftitle.description;
   <methodsynopsis>
    <modifier>public</modifier> <type>int</type><methodname>DOMDocument::xinclude</methodname>
-   <methodparam choice="opt"><type>int</type><parameter>options</parameter></methodparam>
+   <methodparam choice="opt"><type>int</type><parameter>options</parameter><initializer>0</initializer></methodparam>
   </methodsynopsis>
   <para>
    This method substitutes <link