Update set.xml Specify the correct return type and values, CS (#5215)

Author: mmalferov

reference/quickhash/quickhashinthash/set.xml

@@ -10,7 +10,7 @@
  <refsect1 role="description">
   &reftitle.description;
   <methodsynopsis>
-   <modifier>public</modifier> <type>bool</type><methodname>QuickHashIntHash::set</methodname>
+   <modifier>public</modifier> <type>int</type><methodname>QuickHashIntHash::set</methodname>
    <methodparam><type>int</type><parameter>key</parameter></methodparam>
    <methodparam><type>int</type><parameter>value</parameter></methodparam>
   </methodsynopsis>
@@ -49,7 +49,7 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <simpara>
-   2 if the entry was found and updated, 1 if the entry was newly added or 0
+   2 if the entry was newly added, 1 if the entry was found and updated, or 0
    if there was an error.
   </simpara>
  </refsect1>
@@ -61,17 +61,17 @@
    <programlisting role="php">
 <![CDATA[
 <?php
-$hash = new QuickHashIntHash( 1024 );
+
+$hash = new QuickHashIntHash(1024);
 
 echo "Set->Add\n";
-var_dump( $hash->get( 46692 ) );
-var_dump( $hash->set( 46692, 16091 ) );
-var_dump( $hash->get( 46692 ) );
+var_dump($hash->get(46692));
+var_dump($hash->set(46692, 16091));
+var_dump($hash->get(46692));
 
-echo "Set->Update\n";
-var_dump( $hash->set( 46692, 29906 ) );
-var_dump( $hash->get( 46692 ) );
-?>
+echo "\n\nSet->Update\n";
+var_dump($hash->set(46692, 29906));
+var_dump($hash->get(46692));
 ]]>
    </programlisting>
    &example.outputs.similar;
@@ -81,6 +81,7 @@ Set->Add
 bool(false)
 int(2)
 int(16091)
+
 Set->Update
 int(1)
 int(29906)