installed plugin W3 Total Cache version 2.3.2

wp-content/plugins/w3-total-cache/extension-example/w3-total-cache-example.php

@@ -0,0 +1,59 @@
+<?php
+/*
+Plugin Name: W3 Total Cache Example Extension
+Description: W3 Total Cache Example Extension
+Version: 1.0
+Plugin URI: https://www.w3-edge.com/wordpress-plugins/w3-total-cache/
+Author: Frederick Townes
+Author URI: http://www.linkedin.com/in/fredericktownes
+Network: True
+*/
+
+/*  Copyright (c) 2009 Frederick Townes <ftownes@w3-edge.com>
+
+	W3 Total Cache is distributed under the GNU General Public License, Version 2,
+	June 1991. Copyright (C) 1989, 1991 Free Software Foundation, Inc., 51 Franklin
+	St, Fifth Floor, Boston, MA 02110, USA
+
+	THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+	ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+	WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+	DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+	ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+	(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+	LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+	ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+	(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+	SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+if ( !defined( 'ABSPATH' ) ) {
+	die();
+}
+
+/**
+ * Class autoloader
+ *
+ * @param string  $class Classname
+ */
+function w3tc_example_class_autoload( $class ) {
+	if ( substr( $class, 0, 12 ) == 'W3TCExample\\' ) {
+		$filename = dirname( __FILE__ ) . DIRECTORY_SEPARATOR .
+			substr( $class, 12 ) . '.php';
+
+		if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
+			if ( !file_exists( $filename ) ) {
+				debug_print_backtrace();
+			}
+		}
+
+		require $filename;
+	}
+}
+
+spl_autoload_register( 'w3tc_example_class_autoload' );
+
+add_action( 'w3tc_extensions', array(
+		'\W3TCExample\Extension_Example_Admin',
+		'w3tc_extensions'
+	), 10, 2 );