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+++ b/library/log4php/appenders/LoggerAppenderDailyFile.php
@@ -0,0 +1,128 @@
+<?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.
+ */
+
+/**
+ * An Appender that automatically creates a new logfile each day.
+ *
+ * The file is rolled over once a day. That means, for each day a new file
+ * is created. A formatted version of the date pattern is used as to create
+ * the file name using the {@link PHP_MANUAL#sprintf} function.
+ *
+ * This appender uses a layout.
+ *
+ * ##Configurable parameters:##
+ *
+ * - **datePattern** - Format for the date in the file path, follows formatting
+ *     rules used by the PHP date() function. Default value: "Ymd".
+ * - **file** - Path to the target file. Should contain a %s which gets
+ *     substituted by the date.
+ * - **append** - If set to true, the appender will append to the file,
+ *     otherwise the file contents will be overwritten. Defaults to true.
+ *
+ * @version $Revision: 1382274 $
+ * @package log4php
+ * @subpackage appenders
+ * @license http://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0
+ * @link http://logging.apache.org/log4php/docs/appenders/daily-file.html Appender documentation
+ */
+class LoggerAppenderDailyFile extends LoggerAppenderFile {
+
+    /**
+     * The 'datePattern' parameter.
+     * Determines how date will be formatted in file name.
+     * @var string
+     */
+    protected $datePattern = "Ymd";
+
+    /**
+     * Current date which was used when opening a file.
+     * Used to determine if a rollover is needed when the date changes.
+     * @var string
+     */
+    protected $currentDate;
+
+    /** Additional validation for the date pattern. */
+    public function activateOptions() {
+        parent::activateOptions();
+
+        if (empty($this->datePattern)) {
+            $this->warn("Required parameter 'datePattern' not set. Closing appender.");
+            $this->closed = true;
+            return;
+        }
+    }
+
+    /**
+     * Appends a logging event.
+     *
+     * If the target file changes because of passage of time (e.g. at midnight)
+     * the current file is closed. A new file, with the new date, will be
+     * opened by the write() method.
+     */
+    public function append(LoggerLoggingEvent $event) {
+        $eventDate = $this->getDate($event->getTimestamp());
+
+        // Initial setting of current date
+        if (!isset($this->currentDate)) {
+            $this->currentDate = $eventDate;
+        } // Check if rollover is needed
+        else if ($this->currentDate !== $eventDate) {
+            $this->currentDate = $eventDate;
+
+            // Close the file if it's open.
+            // Note: $this->close() is not called here because it would set
+            //       $this->closed to true and the appender would not recieve
+            //       any more logging requests
+            if (is_resource($this->fp)) {
+                $this->write($this->layout->getFooter());
+                fclose($this->fp);
+            }
+            $this->fp = null;
+        }
+
+        parent::append($event);
+    }
+
+    /** Renders the date using the configured <var>datePattern<var>. */
+    protected function getDate($timestamp = null) {
+        return date($this->datePattern, $timestamp);
+    }
+
+    /**
+     * Determines target file. Replaces %s in file path with a date.
+     */
+    protected function getTargetFile() {
+        return str_replace('%s', $this->currentDate, $this->file);
+    }
+
+    /**
+     * Sets the 'datePattern' parameter.
+     * @param string $datePattern
+     */
+    public function setDatePattern($datePattern) {
+        $this->setString('datePattern', $datePattern);
+    }
+
+    /**
+     * Returns the 'datePattern' parameter.
+     * @return string
+     */
+    public function getDatePattern() {
+        return $this->datePattern;
+    }
+}