Added note on behavior of is_scalar() with regards to resource type values

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@50080 c90b9560-bf6c-de11-be94-00142212c4b1

functions/var.xml

@@ -745,6 +745,14 @@ show_var($proteins)
       </programlisting>
      </informalexample>
     </para>
+    <note>
+     <para>
+      Note that the PHP resource type is not considered a scalar value.
+	  Andi Gutmans states: "[Resources] are abstract datatypes which
+	  happen to be in ID (integer) form ... people should [not] count
+	  on it being an integer as this could change one day."
+     </para>
+    </note>
     <note>
      <para>
       This function was added to the CVS code after the release of PHP
@@ -1291,7 +1299,7 @@ foo();
 &lt;?php
 $a = array (1, 2, array ("a", "b", "c"));
 var_dump ($a);
-    
+
 /* output:
 array(3) {
   [0]=>