diff --git a/reference/pcntl/functions/pcntl-async-signals.xml b/reference/pcntl/functions/pcntl-async-signals.xml
index 2023479ae5..be39e553ed 100644
--- a/reference/pcntl/functions/pcntl-async-signals.xml
+++ b/reference/pcntl/functions/pcntl-async-signals.xml
@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- $Revision$ -->
-
 <refentry xml:id="function.pcntl-async-signals" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
  <refnamediv>
   <refname>pcntl_async_signals</refname>
@@ -9,12 +8,12 @@
 
  <refsect1 role="description"><!-- {{{ -->
   &reftitle.description;
-  <methodsynopsis role="procedural">
+  <methodsynopsis>
    <type>bool</type><methodname>pcntl_async_signals</methodname>
-   <methodparam choice="opt"><type>bool</type><parameter>on</parameter><initializer>&null;</initializer></methodparam>
+   <methodparam choice="opt"><type class="union"><type>bool</type><type>null</type></type><parameter>enable</parameter><initializer>&null;</initializer></methodparam>
   </methodsynopsis>
   <para>
-   If the <parameter>on</parameter> parameter is omitted,
+   If the <parameter>enable</parameter> parameter is &null;,
    <function>pcntl_async_signals</function> returns whether asynchronous signal
    handling is enabled. Otherwise, asynchronous signal handling is enabled or
    disabled.
@@ -25,7 +24,7 @@
   &reftitle.parameters;
   <variablelist>
    <varlistentry>
-    <term><parameter>on</parameter></term>
+    <term><parameter>enable</parameter></term>
     <listitem>
      <para>
       Whether asynchronous signal handling should be enabled.
@@ -38,13 +37,35 @@
  <refsect1 role="returnvalues"><!-- {{{ -->
   &reftitle.returnvalues;
   <para>
-   When used as getter (that is without the optional parameter) it returns
-   whether asynchronous signal handling is enabled. When used as setter (that is
-   with the optional parameter given), it returns whether asynchronous signal
+   When used as getter (<parameter>enable</parameter> parameter is &null;) it returns
+   whether asynchronous signal handling is enabled. When used as setter (<parameter>enable</parameter>
+   parameter is not &null;), it returns whether asynchronous signal
    handling was enabled <emphasis>before</emphasis> the function call.
   </para>
  </refsect1><!-- }}} -->
 
+ <refsect1 role="changelog">
+  &reftitle.changelog;
+  <informaltable>
+   <tgroup cols="2">
+    <thead>
+     <row>
+      <entry>&Version;</entry>
+      <entry>&Description;</entry>
+     </row>
+    </thead>
+    <tbody>
+     <row>
+      <entry>8.0.0</entry>
+      <entry>
+       <parameter>enable</parameter> is nullable now.
+      </entry>
+     </row>
+    </tbody>
+   </tgroup>
+  </informaltable>
+ </refsect1>
+
  <refsect1 role="seealso"><!-- {{{ -->
   &reftitle.seealso;
   <simplelist>
@@ -53,7 +74,6 @@
  </refsect1><!-- }}} -->
 
 </refentry>
-
 <!-- Keep this comment at the end of the file
 Local variables:
 mode: sgml
diff --git a/reference/pcntl/functions/pcntl-exec.xml b/reference/pcntl/functions/pcntl-exec.xml
index dc5cabef57..eee2a9efce 100644
--- a/reference/pcntl/functions/pcntl-exec.xml
+++ b/reference/pcntl/functions/pcntl-exec.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- $Revision$ -->
-<refentry xml:id='function.pcntl-exec' xmlns="http://docbook.org/ns/docbook">
+<refentry xml:id="function.pcntl-exec" xmlns="http://docbook.org/ns/docbook">
  <refnamediv>
   <refname>pcntl_exec</refname>
   <refpurpose>Executes specified program in current process space</refpurpose>
@@ -9,10 +9,10 @@
  <refsect1 role="description">
   &reftitle.description;
   <methodsynopsis>
-   <type>void</type><methodname>pcntl_exec</methodname>
+   <type>bool</type><methodname>pcntl_exec</methodname>
    <methodparam><type>string</type><parameter>path</parameter></methodparam>
-   <methodparam choice="opt"><type>array</type><parameter>args</parameter></methodparam>
-   <methodparam choice="opt"><type>array</type><parameter>envs</parameter></methodparam>
+   <methodparam choice="opt"><type>array</type><parameter>args</parameter><initializer>[]</initializer></methodparam>
+   <methodparam choice="opt"><type>array</type><parameter>env_vars</parameter><initializer>[]</initializer></methodparam>
   </methodsynopsis>
   <para>
    Executes the program with the given arguments.
@@ -44,10 +44,10 @@
      </listitem>
     </varlistentry>
     <varlistentry>
-     <term><parameter>envs</parameter></term>
+     <term><parameter>env_vars</parameter></term>
      <listitem>
       <para>
-       <parameter>envs</parameter> is an array of strings which are passed as
+       <parameter>env_vars</parameter> is an array of strings which are passed as
        environment to the program.  The array is in the format of name => value,
        the key being the name of the environmental variable and the value being
        the value of that variable.
@@ -61,12 +61,11 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-   &return.nullorfalse;
+   Returns &false;.
   </para>
  </refsect1>
 
 </refentry>
-
 <!-- Keep this comment at the end of the file
 Local variables:
 mode: sgml
diff --git a/reference/pcntl/functions/pcntl-getpriority.xml b/reference/pcntl/functions/pcntl-getpriority.xml
index 9341d58631..4de1c9f7de 100644
--- a/reference/pcntl/functions/pcntl-getpriority.xml
+++ b/reference/pcntl/functions/pcntl-getpriority.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- $Revision$ -->
-<refentry xml:id='function.pcntl-getpriority' xmlns="http://docbook.org/ns/docbook">
+<refentry xml:id="function.pcntl-getpriority" xmlns="http://docbook.org/ns/docbook">
  <refnamediv>
   <refname>pcntl_getpriority</refname>
   <refpurpose>Get the priority of any process</refpurpose>
@@ -9,13 +9,13 @@
  <refsect1 role="description">
   &reftitle.description;
   <methodsynopsis>
-   <type>int</type><methodname>pcntl_getpriority</methodname>
-   <methodparam choice="opt"><type>int</type><parameter>pid</parameter><initializer>getmypid()</initializer></methodparam>
-   <methodparam choice="opt"><type>int</type><parameter>process_identifier</parameter><initializer>PRIO_PROCESS</initializer></methodparam>
+   <type class="union"><type>int</type><type>false</type></type><methodname>pcntl_getpriority</methodname>
+   <methodparam choice="opt"><type class="union"><type>int</type><type>null</type></type><parameter>process_id</parameter><initializer>&null;</initializer></methodparam>
+   <methodparam choice="opt"><type>int</type><parameter>mode</parameter><initializer><constant>PRIO_PROCESS</constant></initializer></methodparam>
   </methodsynopsis>
   <para>
    <function>pcntl_getpriority</function> gets the priority of
-   <parameter>pid</parameter>. Because priority levels can differ between
+   <parameter>process_id</parameter>. Because priority levels can differ between
    system types and kernel versions, please see your system's getpriority(2)
    man page for specific details.
   </para>
@@ -26,15 +26,15 @@
   <para>
    <variablelist>
     <varlistentry>
-     <term><parameter>pid</parameter></term>
+     <term><parameter>process_id</parameter></term>
      <listitem>
       <para>
-       If not specified, the pid of the current process is used.
+       If &null;, the pid of the current process is used.
       </para>
      </listitem>
     </varlistentry>
     <varlistentry>
-     <term><parameter>process_identifier</parameter></term>
+     <term><parameter>mode</parameter></term>
      <listitem>
       <para>
        One of <constant>PRIO_PGRP</constant>, <constant>PRIO_USER</constant>
@@ -56,6 +56,28 @@
   &return.falseproblem;
  </refsect1>
 
+ <refsect1 role="changelog">
+  &reftitle.changelog;
+  <informaltable>
+   <tgroup cols="2">
+    <thead>
+     <row>
+      <entry>&Version;</entry>
+      <entry>&Description;</entry>
+     </row>
+    </thead>
+    <tbody>
+     <row>
+      <entry>8.0.0</entry>
+      <entry>
+       <parameter>process_id</parameter> is nullable now.
+      </entry>
+     </row>
+    </tbody>
+   </tgroup>
+  </informaltable>
+ </refsect1>
+
  <refsect1 role="seealso">
   &reftitle.seealso;
   <para>
@@ -66,7 +88,6 @@
  </refsect1>
 
 </refentry>
-
 <!-- Keep this comment at the end of the file
 Local variables:
 mode: sgml
diff --git a/reference/pcntl/functions/pcntl-setpriority.xml b/reference/pcntl/functions/pcntl-setpriority.xml
index 93e1251b74..dde3931a41 100644
--- a/reference/pcntl/functions/pcntl-setpriority.xml
+++ b/reference/pcntl/functions/pcntl-setpriority.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- $Revision$ -->
-<refentry xml:id='function.pcntl-setpriority' xmlns="http://docbook.org/ns/docbook">
+<refentry xml:id="function.pcntl-setpriority" xmlns="http://docbook.org/ns/docbook">
  <refnamediv>
   <refname>pcntl_setpriority</refname>
   <refpurpose>Change the priority of any process</refpurpose>
@@ -11,12 +11,12 @@
   <methodsynopsis>
    <type>bool</type><methodname>pcntl_setpriority</methodname>
    <methodparam><type>int</type><parameter>priority</parameter></methodparam>
-   <methodparam choice="opt"><type>int</type><parameter>pid</parameter><initializer>getmypid()</initializer></methodparam>
-   <methodparam choice="opt"><type>int</type><parameter>process_identifier</parameter><initializer>PRIO_PROCESS</initializer></methodparam>
+   <methodparam choice="opt"><type class="union"><type>int</type><type>null</type></type><parameter>process_id</parameter><initializer>&null;</initializer></methodparam>
+   <methodparam choice="opt"><type>int</type><parameter>mode</parameter><initializer><constant>PRIO_PROCESS</constant></initializer></methodparam>
   </methodsynopsis>
   <para>
    <function>pcntl_setpriority</function> sets the priority of
-   <parameter>pid</parameter>. 
+   <parameter>process_id</parameter>. 
   </para>
  </refsect1>
 
@@ -38,15 +38,15 @@
      </listitem>
     </varlistentry>
     <varlistentry>
-     <term><parameter>pid</parameter></term>
+     <term><parameter>process_id</parameter></term>
      <listitem>
       <para>
-       If not specified, the pid of the current process is used.
+       If &null;, the pid of the current process is used.
       </para>
      </listitem>
     </varlistentry>
     <varlistentry>
-     <term><parameter>process_identifier</parameter></term>
+     <term><parameter>mode</parameter></term>
      <listitem>
       <para>
        One of <constant>PRIO_PGRP</constant>, <constant>PRIO_USER</constant>
@@ -65,6 +65,28 @@
   </para>
  </refsect1>
 
+ <refsect1 role="changelog">
+  &reftitle.changelog;
+  <informaltable>
+   <tgroup cols="2">
+    <thead>
+     <row>
+      <entry>&Version;</entry>
+      <entry>&Description;</entry>
+     </row>
+    </thead>
+    <tbody>
+     <row>
+      <entry>8.0.0</entry>
+      <entry>
+       <parameter>process_id</parameter> is nullable now.
+      </entry>
+     </row>
+    </tbody>
+   </tgroup>
+  </informaltable>
+ </refsect1>
+
  <refsect1 role="seealso">
   &reftitle.seealso;
   <para>
@@ -75,7 +97,6 @@
  </refsect1>
 
 </refentry>
-
 <!-- Keep this comment at the end of the file
 Local variables:
 mode: sgml
diff --git a/reference/pcntl/functions/pcntl-signal-get-handler.xml b/reference/pcntl/functions/pcntl-signal-get-handler.xml
index 434cab3026..c050992d65 100644
--- a/reference/pcntl/functions/pcntl-signal-get-handler.xml
+++ b/reference/pcntl/functions/pcntl-signal-get-handler.xml
@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- $Revision$ -->
-
 <refentry xml:id="function.pcntl-signal-get-handler" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
  <refnamediv>
   <refname>pcntl_signal_get_handler</refname>
@@ -10,11 +9,11 @@
  <refsect1 role="description">
   &reftitle.description;
   <methodsynopsis>
-   <type>mixed</type><methodname>pcntl_signal_get_handler</methodname>
-   <methodparam><type>int</type><parameter>signo</parameter></methodparam>
+   <type class="union"><type>callable</type><type>int</type></type><methodname>pcntl_signal_get_handler</methodname>
+   <methodparam><type>int</type><parameter>signal</parameter></methodparam>
   </methodsynopsis>
   <para>
-   The <function>pcntl_signal_get_handler</function> function will get the current handler for the specified <parameter>signo</parameter>.
+   The <function>pcntl_signal_get_handler</function> function will get the current handler for the specified <parameter>signal</parameter>.
   </para>
  </refsect1>
 
@@ -22,7 +21,7 @@
   &reftitle.parameters;
   <variablelist>
    <varlistentry>
-    <term><parameter>signo</parameter></term>
+    <term><parameter>signal</parameter></term>
     <listitem>
      <para>
       The signal number.
@@ -35,7 +34,8 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-   This function may return an integer value that refers to <constant>SIG_DFL</constant> or <constant>SIG_IGN</constant>.  If you set a custom handler a string value containing the function name is returned.
+   This function may return an integer value that refers to <constant>SIG_DFL</constant> or <constant>SIG_IGN</constant>.
+   If a custom handler has been set, that <type>callable</type> is returned.
   </para>
  </refsect1>
 
@@ -95,7 +95,6 @@ var_dump(pcntl_signal_get_handler(SIGUSR1)); // Outputs: int(1)
  </refsect1>
 
 </refentry>
-
 <!-- Keep this comment at the end of the file
 Local variables:
 mode: sgml
diff --git a/reference/pcntl/functions/pcntl-signal.xml b/reference/pcntl/functions/pcntl-signal.xml
index 04ccedecc9..529a3e8c43 100644
--- a/reference/pcntl/functions/pcntl-signal.xml
+++ b/reference/pcntl/functions/pcntl-signal.xml
@@ -10,13 +10,13 @@
   &reftitle.description;
   <methodsynopsis>
    <type>bool</type><methodname>pcntl_signal</methodname>
-   <methodparam><type>int</type><parameter>signo</parameter></methodparam>
+   <methodparam><type>int</type><parameter>signal</parameter></methodparam>
    <methodparam><type class="union"><type>callable</type><type>int</type></type><parameter>handler</parameter></methodparam>
    <methodparam choice="opt"><type>bool</type><parameter>restart_syscalls</parameter><initializer>&true;</initializer></methodparam>
   </methodsynopsis>
   <para>
    The <function>pcntl_signal</function> function installs a new
-   signal handler or replaces the current signal handler for the signal indicated by <parameter>signo</parameter>.
+   signal handler or replaces the current signal handler for the signal indicated by <parameter>signal</parameter>.
   </para>
  </refsect1>
 
@@ -25,7 +25,7 @@
   <para>
    <variablelist>
     <varlistentry>
-     <term><parameter>signo</parameter></term>
+     <term><parameter>signal</parameter></term>
      <listitem>
       <para>
        The signal number.
@@ -54,7 +54,7 @@
        </methodsynopsis>
        <variablelist>
         <varlistentry>
-         <term><parameter>signo</parameter></term>
+         <term><parameter>signal</parameter></term>
          <listitem>
           <simpara>
            The signal being handled.
@@ -202,7 +202,6 @@ echo "Done\n";
  </refsect1>
 
 </refentry>
-
 <!-- Keep this comment at the end of the file
 Local variables:
 mode: sgml
diff --git a/reference/pcntl/functions/pcntl-sigprocmask.xml b/reference/pcntl/functions/pcntl-sigprocmask.xml
index de4331ac92..a57ad686db 100644
--- a/reference/pcntl/functions/pcntl-sigprocmask.xml
+++ b/reference/pcntl/functions/pcntl-sigprocmask.xml
@@ -10,13 +10,13 @@
   &reftitle.description;
   <methodsynopsis>
    <type>bool</type><methodname>pcntl_sigprocmask</methodname>
-   <methodparam><type>int</type><parameter>how</parameter></methodparam>
-   <methodparam><type>array</type><parameter>set</parameter></methodparam>
-   <methodparam choice="opt"><type>array</type><parameter role="reference">oldset</parameter></methodparam>
+   <methodparam><type>int</type><parameter>mode</parameter></methodparam>
+   <methodparam><type>array</type><parameter>signals</parameter></methodparam>
+   <methodparam choice="opt"><type>array</type><parameter role="reference">old_signals</parameter><initializer>&null;</initializer></methodparam>
   </methodsynopsis>
   <para>
    The <function>pcntl_sigprocmask</function> function adds, removes or sets blocked
-   signals, depending on the <parameter>how</parameter> parameter.
+   signals, depending on the <parameter>mode</parameter> parameter.
   </para>
  </refsect1>
 
@@ -25,7 +25,7 @@
   <para>
    <variablelist>
     <varlistentry>
-     <term><parameter>how</parameter></term>
+     <term><parameter>mode</parameter></term>
      <listitem>
       <para>
        Sets the behavior of <function>pcntl_sigprocmask</function>. Possible
@@ -42,7 +42,7 @@
      </listitem>
     </varlistentry>
     <varlistentry>
-     <term><parameter>set</parameter></term>
+     <term><parameter>signals</parameter></term>
      <listitem>
       <para>
        List of signals.
@@ -50,10 +50,10 @@
      </listitem>
     </varlistentry>
     <varlistentry>
-     <term><parameter>oldset</parameter></term>
+     <term><parameter>old_signals</parameter></term>
      <listitem>
       <para>
-       The <parameter>oldset</parameter> parameter is set to an array
+       The <parameter>old_signals</parameter> parameter is set to an array
        containing the list of the previously blocked signals.
       </para>
      </listitem>
@@ -98,7 +98,6 @@ pcntl_sigprocmask(SIG_UNBLOCK, array(SIGHUP), $oldset);
  </refsect1>
 
 </refentry>
-
 <!-- Keep this comment at the end of the file
 Local variables:
 mode: sgml
diff --git a/reference/pcntl/functions/pcntl-sigtimedwait.xml b/reference/pcntl/functions/pcntl-sigtimedwait.xml
index 336f3a59fe..752218ebf5 100644
--- a/reference/pcntl/functions/pcntl-sigtimedwait.xml
+++ b/reference/pcntl/functions/pcntl-sigtimedwait.xml
@@ -9,9 +9,9 @@
  <refsect1 role="description">
   &reftitle.description;
   <methodsynopsis>
-   <type>int</type><methodname>pcntl_sigtimedwait</methodname>
-   <methodparam><type>array</type><parameter>set</parameter></methodparam>
-   <methodparam choice="opt"><type>array</type><parameter role="reference">siginfo</parameter></methodparam>
+   <type class="union"><type>int</type><type>false</type></type><methodname>pcntl_sigtimedwait</methodname>
+   <methodparam><type>array</type><parameter>signals</parameter></methodparam>
+   <methodparam choice="opt"><type>array</type><parameter role="reference">info</parameter><initializer>[]</initializer></methodparam>
    <methodparam choice="opt"><type>int</type><parameter>seconds</parameter><initializer>0</initializer></methodparam>
    <methodparam choice="opt"><type>int</type><parameter>nanoseconds</parameter><initializer>0</initializer></methodparam>
   </methodsynopsis>
@@ -29,7 +29,7 @@
   <para>
    <variablelist>
     <varlistentry>
-     <term><parameter>set</parameter></term>
+     <term><parameter>signals</parameter></term>
      <listitem>
       <para>
        Array of signals to wait for.
@@ -37,10 +37,10 @@
      </listitem>
     </varlistentry>
     <varlistentry>
-     <term><parameter>siginfo</parameter></term>
+     <term><parameter>info</parameter></term>
      <listitem>
       <para>
-       The <parameter>siginfo</parameter> is set to an array containing
+       The <parameter>info</parameter> is set to an array containing
        information about the signal. See
        <function>pcntl_sigwaitinfo</function>.
       </para>
@@ -69,7 +69,7 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-   On success, <function>pcntl_sigtimedwait</function> returns a signal number.
+   <function>pcntl_sigtimedwait</function> returns a signal number on success, &return.falseforfailure;.
   </para>
  </refsect1>
 
@@ -84,7 +84,6 @@
  </refsect1>
 
 </refentry>
-
 <!-- Keep this comment at the end of the file
 Local variables:
 mode: sgml
diff --git a/reference/pcntl/functions/pcntl-sigwaitinfo.xml b/reference/pcntl/functions/pcntl-sigwaitinfo.xml
index d6beba0f4b..cc8b9c2416 100644
--- a/reference/pcntl/functions/pcntl-sigwaitinfo.xml
+++ b/reference/pcntl/functions/pcntl-sigwaitinfo.xml
@@ -9,13 +9,13 @@
  <refsect1 role="description">
   &reftitle.description;
   <methodsynopsis>
-   <type>int</type><methodname>pcntl_sigwaitinfo</methodname>
-   <methodparam><type>array</type><parameter>set</parameter></methodparam>
-   <methodparam choice="opt"><type>array</type><parameter role="reference">siginfo</parameter></methodparam>
+   <type class="union"><type>int</type><type>false</type></type><methodname>pcntl_sigwaitinfo</methodname>
+   <methodparam><type>array</type><parameter>signals</parameter></methodparam>
+   <methodparam choice="opt"><type>array</type><parameter role="reference">info</parameter><initializer>[]</initializer></methodparam>
   </methodsynopsis>
   <para>
    The <function>pcntl_sigwaitinfo</function> function suspends execution of the
-   calling script until one of the signals given in <parameter>set</parameter>
+   calling script until one of the signals given in <parameter>signals</parameter>
    are delivered. If one of the signal is already pending (e.g. blocked by
    <function>pcntl_sigprocmask</function>),
    <function>pcntl_sigwaitinfo</function> will return immediately.
@@ -27,7 +27,7 @@
   <para>
    <variablelist>
     <varlistentry>
-     <term><parameter>set</parameter></term>
+     <term><parameter>signals</parameter></term>
      <listitem>
       <para>
        Array of signals to wait for.
@@ -35,10 +35,10 @@
      </listitem>
     </varlistentry>
     <varlistentry>
-     <term><parameter>siginfo</parameter></term>
+     <term><parameter>info</parameter></term>
      <listitem>
       <para>
-       The <parameter>siginfo</parameter> parameter is set to an array containing
+       The <parameter>info</parameter> parameter is set to an array containing
        information about the signal.
       </para>
       <para>
@@ -84,7 +84,7 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-   On success, <function>pcntl_sigwaitinfo</function> returns a signal number.
+   Returns a signal number on success, or &false; on error.
   </para>
  </refsect1>
 
@@ -123,7 +123,6 @@ pcntl_sigwaitinfo(array(SIGHUP), $info);
  </refsect1>
 
 </refentry>
-
 <!-- Keep this comment at the end of the file
 Local variables:
 mode: sgml
diff --git a/reference/pcntl/functions/pcntl-strerror.xml b/reference/pcntl/functions/pcntl-strerror.xml
index 3951fd7d64..ce09dc240f 100644
--- a/reference/pcntl/functions/pcntl-strerror.xml
+++ b/reference/pcntl/functions/pcntl-strerror.xml
@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- $Revision$ -->
-
 <refentry xml:id="function.pcntl-strerror" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
  <refnamediv>
   <refname>pcntl_strerror</refname>
@@ -10,8 +9,8 @@
  <refsect1 role="description">
   &reftitle.description;
   <methodsynopsis>
-   <type class="union"><type>string</type><type>false</type></type><methodname>pcntl_strerror</methodname>
-   <methodparam><type>int</type><parameter>errno</parameter></methodparam>
+   <type>string</type><methodname>pcntl_strerror</methodname>
+   <methodparam><type>int</type><parameter>error_code</parameter></methodparam>
   </methodsynopsis>
   <para>
 
@@ -25,7 +24,7 @@
   &reftitle.parameters;
   <variablelist>
    <varlistentry>
-    <term><parameter>errno</parameter></term>
+    <term><parameter>error_code</parameter></term>
     <listitem>
      <para>
       
@@ -38,7 +37,7 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-   Returns error description on success&return.falseforfailure;.
+   Returns error description.
   </para>
  </refsect1>
 
@@ -50,7 +49,6 @@
  </refsect1>
 
 </refentry>
-
 <!-- Keep this comment at the end of the file
 Local variables:
 mode: sgml
diff --git a/reference/pcntl/functions/pcntl-wait.xml b/reference/pcntl/functions/pcntl-wait.xml
index 276f4e5877..0db07950bd 100644
--- a/reference/pcntl/functions/pcntl-wait.xml
+++ b/reference/pcntl/functions/pcntl-wait.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- $Revision$ -->
-<refentry xml:id='function.pcntl-wait' xmlns="http://docbook.org/ns/docbook">
+<refentry xml:id="function.pcntl-wait" xmlns="http://docbook.org/ns/docbook">
  <refnamediv>
   <refname>pcntl_wait</refname>
   <refpurpose>Waits on or returns the status of a forked child</refpurpose>
@@ -11,8 +11,8 @@
   <methodsynopsis>
    <type>int</type><methodname>pcntl_wait</methodname>
    <methodparam><type>int</type><parameter role="reference">status</parameter></methodparam>
-   <methodparam choice="opt"><type>int</type><parameter>options</parameter><initializer>0</initializer></methodparam>
-   <methodparam choice="opt"><type>array</type><parameter role="reference">rusage</parameter></methodparam>
+   <methodparam choice="opt"><type>int</type><parameter>flags</parameter><initializer>0</initializer></methodparam>
+   <methodparam choice="opt"><type>array</type><parameter role="reference">resource_usage</parameter><initializer>[]</initializer></methodparam>
   </methodsynopsis>
   <para>
    The wait function suspends execution of the current process until a
@@ -27,7 +27,7 @@
    <para>
     This function is equivalent to calling <function>pcntl_waitpid</function>
     with a <literal>-1</literal> <parameter>pid</parameter> and no
-    <parameter>options</parameter>.
+    <parameter>flags</parameter>.
    </para>
   </note>
  </refsect1>
@@ -53,18 +53,18 @@
      </listitem>
     </varlistentry>
     <varlistentry>
-     <term><parameter>options</parameter></term>
+     <term><parameter>flags</parameter></term>
      <listitem>
       <para>
        If wait3 is available on your system (mostly BSD-style systems), you can
-       provide the optional <parameter>options</parameter> parameter.  If this
+       provide the optional <parameter>flags</parameter> parameter.  If this
        parameter is not provided, wait will be used for the system call.  If
        wait3 is not available, providing a value for <parameter>options
        </parameter> will have no effect. The value of <parameter>options
        </parameter> is the value of zero or more of the following two constants
        <literal>OR</literal>'ed together:
        <table>
-        <title>Possible values for <parameter>options</parameter></title>
+        <title>Possible values for <parameter>flags</parameter></title>
         <tgroup cols="2">
          <tbody>
           <row>
@@ -117,7 +117,6 @@
  </refsect1>
 
 </refentry>
-
 <!-- Keep this comment at the end of the file
 Local variables:
 mode: sgml
diff --git a/reference/pcntl/functions/pcntl-waitpid.xml b/reference/pcntl/functions/pcntl-waitpid.xml
index a9b9b88927..f8fef2be64 100644
--- a/reference/pcntl/functions/pcntl-waitpid.xml
+++ b/reference/pcntl/functions/pcntl-waitpid.xml
@@ -10,19 +10,19 @@
   &reftitle.description;
   <methodsynopsis>
    <type>int</type><methodname>pcntl_waitpid</methodname>
-   <methodparam><type>int</type><parameter>pid</parameter></methodparam>
+   <methodparam><type>int</type><parameter>process_id</parameter></methodparam>
    <methodparam><type>int</type><parameter role="reference">status</parameter></methodparam>
-   <methodparam choice="opt"><type>int</type><parameter>options</parameter><initializer>0</initializer></methodparam>
-   <methodparam choice="opt"><type>array</type><parameter role="reference">rusage</parameter></methodparam>
+   <methodparam choice="opt"><type>int</type><parameter>flags</parameter><initializer>0</initializer></methodparam>
+   <methodparam choice="opt"><type>array</type><parameter role="reference">resource_usage</parameter><initializer>[]</initializer></methodparam>
   </methodsynopsis>
   <para>
    Suspends execution of the current process until a child as specified by
-   the <parameter>pid</parameter> argument has exited, or until a signal is
+   the <parameter>process_id</parameter> argument has exited, or until a signal is
    delivered whose action is to terminate the current process or to call a
    signal handling function.
   </para>
   <para>
-   If a child as requested by <parameter>pid</parameter> has already exited
+   If a child as requested by <parameter>process_id</parameter> has already exited
    by the time of the call (a so-called "zombie" process), the function
    returns immediately.  Any system resources used by the child are freed.
    Please see your system's waitpid(2) man page for specific details as to
@@ -35,19 +35,19 @@
   <para>
    <variablelist>
     <varlistentry>
-     <term><parameter>pid</parameter></term>
+     <term><parameter>process_id</parameter></term>
      <listitem>
       <para>
-       The value of <parameter>pid</parameter> can be one of the following:
+       The value of <parameter>process_id</parameter> can be one of the following:
        <table>
-        <title>possible values for <parameter>pid</parameter></title>
+        <title>possible values for <parameter>process_id</parameter></title>
         <tgroup cols="2">
          <tbody>
           <row>
            <entry><literal>&lt; -1</literal></entry>
            <entry>
             wait for any child process whose process group ID is equal to
-            the absolute value of <parameter>pid</parameter>.
+            the absolute value of <parameter>process_id</parameter>.
            </entry>
           </row>
           <row>
@@ -68,7 +68,7 @@
            <entry><literal>&gt; 0</literal></entry>
            <entry>
             wait for the child whose process ID is equal to the value of
-            <parameter>pid</parameter>.
+            <parameter>process_id</parameter>.
            </entry>
           </row>
          </tbody>
@@ -77,9 +77,9 @@
       </para>
       <note>
        <para>
-        Specifying <literal>-1</literal> as the <parameter>pid</parameter> is
+        Specifying <literal>-1</literal> as the <parameter>process_id</parameter> is
         equivalent to the functionality <function>pcntl_wait</function> provides
-        (minus <parameter>options</parameter>).
+        (minus <parameter>flags</parameter>).
        </para>
       </note>
      </listitem>
@@ -101,14 +101,14 @@
      </listitem>
     </varlistentry>
     <varlistentry>
-     <term><parameter>options</parameter></term>
+     <term><parameter>flags</parameter></term>
      <listitem>
       <para>
-       The value of <parameter>options</parameter> is the value of zero
+       The value of <parameter>flags</parameter> is the value of zero
        or more of the following two global constants
        <literal>OR</literal>'ed together:
        <table>
-        <title>possible values for <parameter>options</parameter></title>
+        <title>possible values for <parameter>flags</parameter></title>
         <tgroup cols="2">
          <tbody>
           <row>
@@ -160,7 +160,6 @@
  </refsect1>
 
 </refentry>
-
 <!-- Keep this comment at the end of the file
 Local variables:
 mode: sgml
diff --git a/reference/pcntl/functions/pcntl-wexitstatus.xml b/reference/pcntl/functions/pcntl-wexitstatus.xml
index 23aa39476e..a3ef9eb0b0 100644
--- a/reference/pcntl/functions/pcntl-wexitstatus.xml
+++ b/reference/pcntl/functions/pcntl-wexitstatus.xml
@@ -9,7 +9,7 @@
  <refsect1 role="description">
   &reftitle.description;
   <methodsynopsis>
-   <type>int</type><methodname>pcntl_wexitstatus</methodname>
+   <type class="union"><type>int</type><type>false</type></type><methodname>pcntl_wexitstatus</methodname>
    <methodparam><type>int</type><parameter>status</parameter></methodparam>
   </methodsynopsis>
   <para>
@@ -36,7 +36,8 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-   Returns the return code, as an integer.
+   Returns the return code.
+   If the functionality is not supported by the OS, &false; is returned.
   </para>
  </refsect1>
 
@@ -51,7 +52,6 @@
  </refsect1>
 
 </refentry>
-
 <!-- Keep this comment at the end of the file
 Local variables:
 mode: sgml
diff --git a/reference/pcntl/functions/pcntl-wstopsig.xml b/reference/pcntl/functions/pcntl-wstopsig.xml
index 5a526d8b1b..8f77839e89 100644
--- a/reference/pcntl/functions/pcntl-wstopsig.xml
+++ b/reference/pcntl/functions/pcntl-wstopsig.xml
@@ -9,7 +9,7 @@
  <refsect1 role="description">
   &reftitle.description;
   <methodsynopsis>
-   <type>int</type><methodname>pcntl_wstopsig</methodname>
+   <type class="union"><type>int</type><type>false</type></type><methodname>pcntl_wstopsig</methodname>
    <methodparam><type>int</type><parameter>status</parameter></methodparam>
   </methodsynopsis>
   <para>
@@ -37,6 +37,7 @@
   &reftitle.returnvalues;
   <para>
    Returns the signal number.
+   If the functionality is not supported by the OS, &false; is returned.
   </para>
  </refsect1>
 
@@ -51,7 +52,6 @@
  </refsect1>
 
 </refentry>
-
 <!-- Keep this comment at the end of the file
 Local variables:
 mode: sgml
diff --git a/reference/pcntl/functions/pcntl-wtermsig.xml b/reference/pcntl/functions/pcntl-wtermsig.xml
index f28e84de15..ed344bee5d 100644
--- a/reference/pcntl/functions/pcntl-wtermsig.xml
+++ b/reference/pcntl/functions/pcntl-wtermsig.xml
@@ -9,7 +9,7 @@
  <refsect1 role="description">
   &reftitle.description;
   <methodsynopsis>
-   <type>int</type><methodname>pcntl_wtermsig</methodname>
+   <type class="union"><type>int</type><type>false</type></type><methodname>pcntl_wtermsig</methodname>
    <methodparam><type>int</type><parameter>status</parameter></methodparam>
   </methodsynopsis>
   <para>
@@ -36,7 +36,8 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-   Returns the signal number, as an integer.
+   Returns the signal number.
+   If the functionality is not supported by the OS, &false; is returned.
   </para>
  </refsect1>
 
@@ -52,7 +53,6 @@
  </refsect1>
 
 </refentry>
-
 <!-- Keep this comment at the end of the file
 Local variables:
 mode: sgml