Added Intial Return TypeError Doc & fix typo

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@337189 c90b9560-bf6c-de11-be94-00142212c4b1

language/functions.xml

@@ -937,7 +937,7 @@ var_dump($dis->two());
  </para>
  <para>
     <example>
-     <title>Return a class;</title>
+     <title>Return a class</title>
      <programlisting role="php">
 <![CDATA[
 <?php
@@ -955,6 +955,30 @@ class B implements A {
      </programlisting>
     </example>
   </para>
+    <para>
+     <example>
+     <title>TypeError</title>
+      <para>Incorrect return type will result in a TypeError</para> 
+     <programlisting role="php">
+<![CDATA[
+<?php
+declare(strict_types=1);
+
+function show(): int{
+	return "1";
+}
+
+try {
+	show();	
+} catch (TypeError $e) {
+ var_dump($e->getMessage()); // string(121) "Return value of show() must be of the type integer, 
+                             // string returned in %s on line 5"
+}
+?>
+]]>
+     </programlisting>
+    </example>
+    </para>
    </sect2>
   </sect1>