isinstance.xml Make the example workable and semantic

php/doc-en@eb55709

Author: mumumu

reference/reflection/reflectionclass/isinstance.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!-- $Revision$ -->
-<!-- EN-Revision: 84f25609071c1da9110a54776d0eda3d3709cacb Maintainer: takagi Status: ready -->
+<!-- EN-Revision: eb557099ed1ddbc49c941f868d896991190b14f8 Maintainer: takagi Status: ready -->
 
 <refentry xml:id="reflectionclass.isinstance" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
  <refnamediv>
@@ -51,20 +51,24 @@
     <programlisting role="php">
 <![CDATA[
 <?php
-// 使用例
-$class = new ReflectionClass('Foo');
 
-if ($class->isInstance($arg)) {
-    echo "Yes";
+class Foo {}
+
+$object = new Foo();
+
+$reflection = new ReflectionClass('Foo');
+
+if ($reflection->isInstance($object)) {
+    echo "Yes\n";
 }
 
 // これも同じ意味です
-if ($arg instanceof Foo) {
-    echo "Yes";
+if ($object instanceof Foo) {
+    echo "Yes\n";
 }
 
 // これも同じ意味です
-if (is_a($arg, 'Foo')) {
+if (is_a($object, 'Foo')) {
     echo "Yes";
 }
 ?>