Random seed is automatic as of PHP 4.2.0, and added php tags.

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@129430 c90b9560-bf6c-de11-be94-00142212c4b1

reference/array/functions/array-rand.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.4 $ -->
+<!-- $Revision: 1.5 $ -->
 <!-- splitted from ./en/functions/array.xml, last change in rev 1.13 -->
   <refentry id="function.array-rand">
    <refnamediv>
@@ -28,20 +28,24 @@
      of keys for the random entries. This is done so that you can pick
      random keys as well as values out of the array.
     </para>
-    <para>
-     Don't forget to call <function>srand</function> to seed the random
-     number generator.
-    </para>
+    <note>
+     <para>
+      As of PHP 4.2.0, there is no need to seed the random number generator
+      with <function>srand</function>, as this is now done automatically.
+     </para>
+    </note>
     <para>
      <example>
       <title><function>array_rand</function> example</title>
       <programlisting role="php">
 <![CDATA[
+<?php
 srand ((float) microtime() * 10000000);
 $input = array ("Neo", "Morpheus", "Trinity", "Cypher", "Tank");
 $rand_keys = array_rand ($input, 2);
 print $input[$rand_keys[0]]."\n";
 print $input[$rand_keys[1]]."\n";
+?>
 ]]>
       </programlisting>
      </example>