Added an example.

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@163703 c90b9560-bf6c-de11-be94-00142212c4b1

reference/mysql/functions/mysql-ping.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.4 $ -->
+<!-- $Revision: 1.5 $ -->
 <!-- splitted from ./en/functions/mysql.xml, last change in rev 1.100 -->
   <refentry id="function.mysql-ping">
    <refnamediv>
@@ -23,6 +23,38 @@
      <function>mysql_ping</function> returns &true; if the connection to the
      server is working, otherwise &false;.
     </para>
+    <para>
+     <example>
+      <title>A <function>mysql_ping</function> example</title>
+      <programlisting role="php">
+<![CDATA[
+<?php
+set_time_limit(0);
+
+$conn = mysql_connect('localhost', 'mysqluser', 'mypass');
+$db   = mysql_select_db('mydb');
+
+/* Assuming this query will take a long time */
+$result = mysql_query($sql);
+if (!$result) {
+    echo 'Query #1 failed, exiting.';
+    exit;
+}
+
+/* Make sure the connection is still alive, if not, try to reconnect */
+if (!mysql_ping($conn)) {
+    echo 'Lost connection, exiting after query #1';
+    exit;
+}
+mysql_free_result($result);
+
+/* So the connection is still alive, let's run another query */
+$result2 = mysql_query($sql2);
+?>
+]]>
+      </programlisting>
+     </example>
+    </para>
     <para>
      See also
      <function>mysql_thread_id</function> and