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--- /dev/null
+++ b/library/log4php/LoggerLayout.php
@@ -0,0 +1,74 @@
+<?php
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * @package log4php
+ */
+
+/**
+ * Extend this abstract class to create your own log layout format.
+ *
+ * @version $Revision: 1213283 $
+ * @package log4php
+ */
+abstract class LoggerLayout extends LoggerConfigurable {
+    /**
+     * Activates options for this layout.
+     * Override this method if you have options to be activated.
+     */
+    public function activateOptions() {
+        return true;
+    }
+
+    /**
+     * Override this method to create your own layout format.
+     *
+     * @param LoggerLoggingEvent
+     * @return string
+     */
+    public function format(LoggerLoggingEvent $event) {
+        return $event->getRenderedMessage();
+    }
+
+    /**
+     * Returns the content type output by this layout.
+     * @return string
+     */
+    public function getContentType() {
+        return "text/plain";
+    }
+
+    /**
+     * Returns the footer for the layout format.
+     * @return string
+     */
+    public function getFooter() {
+        return null;
+    }
+
+    /**
+     * Returns the header for the layout format.
+     * @return string
+     */
+    public function getHeader() {
+        return null;
+    }
+
+    /** Triggers a warning for this layout with the given message. */
+    protected function warn($message) {
+        trigger_error("log4php: [" . get_class($this) . "]: $message", E_USER_WARNING);
+    }
+}