Replace <literal>true/false</literal> by their respective entities (#2399)

* Replace <literal>true/false</literal> by their respective entities

* Fixes

language/control-structures/switch.xml

@@ -211,7 +211,7 @@ switch ($target) {
   </informalexample>
  </para>
  <para>
-  For more complex comparisons, the value <literal>true</literal> may be used as the switch value.
+  For more complex comparisons, the value &true; may be used as the switch value.
   Or, alternatively, <literal>if</literal>-<literal>else</literal> blocks instead of <literal>switch</literal>.
   <informalexample>
    <programlisting role="php">

language/enumerations.xml

@@ -678,7 +678,7 @@ print serialize(Suit::Hearts);
 
   <para>
    On deserialization, if an enum and case cannot be found to match a serialized
-   value a warning will be issued and <literal>false</literal> returned.</para>
+   value a warning will be issued and &false; returned.</para>
 
   <para>
    If a Pure Enum is serialized to JSON, an error will be thrown.  If a Backed Enum

language/types/array.xml

@@ -102,8 +102,8 @@ $array = [
      <listitem>
       <simpara>
        <type>Bool</type>s are cast to <type>int</type>s, too, i.e. the key
-       <literal>true</literal> will actually be stored under <literal>1</literal>
-       and the key <literal>false</literal> under <literal>0</literal>.
+       &true; will actually be stored under <literal>1</literal>
+       and the key &false; under <literal>0</literal>.
       </simpara>
      </listitem>
      <listitem>

language/types/declarations.xml

@@ -260,18 +260,18 @@ Stack trace:
    <title>Union types</title>
    <warning>
     <simpara>
-     It is not possible to combine the two literal types <literal>false</literal>
-     and <literal>true</literal> together in a union type.
+     It is not possible to combine the two literal types <type>false</type>
+     and <type>true</type> together in a union type.
      Use <type>bool</type> instead.
     </simpara>
    </warning>
 
    <caution>
     <simpara>
-     Prior to PHP 8.2.0, as <literal>false</literal> and <type>null</type>
+     Prior to PHP 8.2.0, as <type>false</type> and <type>null</type>
      could not be used as standalone types, a union type comprised of only
      these types was not permitted. This comprises the following types:
-     <literal>false</literal>, <literal>false|null</literal>,
+     <type>false</type>, <literal>false|null</literal>,
      and <literal>?false</literal>.
     </simpara>
    </caution>

language/types/literal.xml

@@ -5,13 +5,13 @@
  <para>
   Literal types are type which not only check the type of a value but also
   the value itself. PHP has support for two literal types:
-  <literal>false</literal> as of PHP 8.0.0, and <literal>true</literal>
+  <type>false</type> as of PHP 8.0.0, and <type>true</type>
   as of PHP 8.2.0.
  </para>
 
  <warning>
   <simpara>
-   Prior to PHP 8.2.0 the <literal>false</literal> type could only be used as part of a
+   Prior to PHP 8.2.0 the <type>false</type> type could only be used as part of a
    <link linkend="language.types.type-system.composite.union">union type</link>.
   </simpara>
  </warning>

reference/luasandbox/luasandbox/callfunction.xml

@@ -56,7 +56,7 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-   Returns an <type>array</type> of values returned by the Lua function, which may be empty, or <literal>false</literal> in case of failure.
+   Returns an <type>array</type> of values returned by the Lua function, which may be empty, &return.falseforfailure;.
   </para>
  </refsect1>
 

reference/luasandbox/luasandbox/setcpulimit.xml

@@ -44,7 +44,7 @@
     <term><parameter>limit</parameter></term>
     <listitem>
      <para>
-      Limit as a <type>float</type> in seconds, or <literal>false</literal> for no limit.
+      Limit as a <type>float</type> in seconds, or &false; for no limit.
      </para>
     </listitem>
    </varlistentry>

reference/luasandbox/luasandboxfunction/call.xml

@@ -18,7 +18,7 @@
   </para>
   <para>
    Errors considered to be the fault of the PHP code will result in the
-   function returning <literal>false</literal> and <constant>E_WARNING</constant>
+   function returning &false; and <constant>E_WARNING</constant>
    being raised, for example, a <type>resource</type> type being used as an
    argument. Lua errors will result in a <classname>LuaSandboxRuntimeError</classname>
    exception being thrown.
@@ -133,7 +133,7 @@
   &reftitle.returnvalues;
   <para>
    Returns an <type>array</type> of values returned by the function, which may be empty,
-   or <literal>false</literal> on error.
+   &return.falseforfailure;.
   </para>
  </refsect1>
 

reference/misc/functions/define.xml

@@ -67,8 +67,8 @@
       <warning>
        <simpara>
         Defining case-insensitive constants is deprecated as of PHP 7.3.0.
-        As of PHP 8.0.0, only <literal>false</literal> is an acceptable value, passing
-        <literal>true</literal> will produce a warning.
+        As of PHP 8.0.0, only &false; is an acceptable value, passing
+        &true; will produce a warning.
        </simpara>
       </warning>
       <note>

reference/mongodb/architecture.xml

@@ -784,7 +784,7 @@ class UpperClass implements MongoDB\BSON\Persistable {
       The <methodname>MongoDB\BSON\Unserializable::bsonUnserialize</methodname>
       method of YourClass, OurClass, TheirClass iterate over the array and set
       the properties without modifications. It <emphasis>also</emphasis> sets
-      the <literal>$unserialized</literal> property to <literal>true</literal>:
+      the <literal>$unserialized</literal> property to &true;:
 
       <programlisting role="php">
 <![CDATA[

reference/outcontrol/functions/ob-implicit-flush.xml

@@ -28,7 +28,7 @@
      <term><parameter>enable</parameter></term>
      <listitem>
       <para>
-       <literal>true</literal> to turn implicit flushing on, <literal>false</literal> otherwise.
+       &true; to turn implicit flushing on, &false; otherwise.
       </para>
      </listitem>
     </varlistentry>

reference/ps/functions/ps-show-boxed.xml

@@ -140,8 +140,8 @@
       <term>linebreak (parameter)</term>
       <listitem>
        <para>
-        Set to <literal>true</literal> if you want a carriage return to start a new line instead
-        of treating it as a space. Defaults to <literal>false</literal>.
+        Set to &true; if you want a carriage return to start a new line instead
+        of treating it as a space. Defaults to &false;.
        </para>
       </listitem>
      </varlistentry>
@@ -149,8 +149,8 @@
       <term>parbreak (parameter)</term>
       <listitem>
        <para>
-        Set to <literal>true</literal> if you want a carriage return on a single line to start a
-        new paragraph instead of treating it as a space. Defaults to <literal>true</literal>.
+        Set to &true; if you want a carriage return on a single line to start a
+        new paragraph instead of treating it as a space. Defaults to &true;.
        </para>
       </listitem>
      </varlistentry>
@@ -158,9 +158,9 @@
       <term>hyphenation (parameter)</term>
       <listitem>
        <para>
-        Set to <literal>true</literal> in order to turn hyphenation on. This requires a
+        Set to &true; in order to turn hyphenation on. This requires a
         dictionary to be set with the parameter <parameter>hyphendict</parameter>. Defaults to
-        <literal>false</literal>.
+        &false;.
        </para>
       </listitem>
      </varlistentry>

reference/sem/functions/sem-acquire.xml

@@ -44,8 +44,8 @@
      <listitem>
       <para>
        Specifies if the process shouldn't wait for the semaphore to be acquired.
-       If set to <literal>true</literal>, the call will return
-       <literal>false</literal> immediately if a semaphore cannot be immediately
+       If set to &true;, the call will return
+       &false; immediately if a semaphore cannot be immediately
        acquired.
       </para>
      </listitem>