Added example

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@183677 c90b9560-bf6c-de11-be94-00142212c4b1

reference/filesystem/functions/is-file.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.6 $ -->
+<!-- $Revision: 1.7 $ -->
 <!-- splitted from ./en/functions/filesystem.xml, last change in rev 1.2 -->
   <refentry id="function.is-file">
    <refnamediv>
@@ -15,6 +15,26 @@
     <para>
      Returns &true; if the filename exists and is a regular file.
     </para>
+    <para>
+     <example>
+      <title><function>is_file</function> example</title>
+      <programlisting role="php">
+<![CDATA[
+<?
+var_dump(is_file('a_file.txt')) . "\n";
+var_dump(is_file('/usr/bin/')) . "\n";
+?>
+]]>
+      </programlisting>
+      &example.outputs;
+      <screen>
+<![CDATA[
+bool(true)
+bool(false)
+]]>
+      </screen>
+     </example>
+    </para>
 
     &note.clearstatcache;