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<?php
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/**
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* $Header$
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*
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* @version $Revision: 293927 $
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* @package Log
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*/
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/**
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* The Log_error_log class is a concrete implementation of the Log abstract
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* class that logs messages using PHP's error_log() function.
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*
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* @author Jon Parise <jon@php.net>
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* @since Log 1.7.0
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* @package Log
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*
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* @example error_log.php Using the error_log handler.
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*/
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class Log_error_log extends Log
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{
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/**
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* The error_log() log type.
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* @var integer
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* @access private
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*/
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var $_type = PEAR_LOG_TYPE_SYSTEM;
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/**
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* The type-specific destination value.
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* @var string
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* @access private
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*/
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var $_destination = '';
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/**
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* Additional headers to pass to the mail() function when the
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* PEAR_LOG_TYPE_MAIL type is used.
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* @var string
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* @access private
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*/
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var $_extra_headers = '';
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/**
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* String containing the format of a log line.
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* @var string
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* @access private
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*/
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var $_lineFormat = '%2$s: %4$s';
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/**
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* String containing the timestamp format. It will be passed directly to
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* strftime(). Note that the timestamp string will generated using the
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* current locale.
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* @var string
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* @access private
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*/
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var $_timeFormat = '%b %d %H:%M:%S';
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/**
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* Constructs a new Log_error_log object.
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*
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* @param string $name One of the PEAR_LOG_TYPE_* constants.
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* @param string $ident The identity string.
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* @param array $conf The configuration array.
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* @param int $level Log messages up to and including this level.
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* @access public
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*/
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function Log_error_log($name, $ident = '', $conf = array(),
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$level = PEAR_LOG_DEBUG)
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{
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$this->_id = md5(microtime());
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$this->_type = $name;
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$this->_ident = $ident;
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$this->_mask = Log::UPTO($level);
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if (!empty($conf['destination'])) {
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$this->_destination = $conf['destination'];
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}
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if (!empty($conf['extra_headers'])) {
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$this->_extra_headers = $conf['extra_headers'];
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}
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if (!empty($conf['lineFormat'])) {
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$this->_lineFormat = str_replace(array_keys($this->_formatMap),
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array_values($this->_formatMap),
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$conf['lineFormat']);
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}
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if (!empty($conf['timeFormat'])) {
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$this->_timeFormat = $conf['timeFormat'];
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}
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}
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/**
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* Opens the handler.
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*
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* @access public
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* @since Log 1.9.6
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*/
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function open()
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{
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$this->_opened = true;
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return true;
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}
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/**
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* Closes the handler.
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*
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* @access public
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* @since Log 1.9.6
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*/
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function close()
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{
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$this->_opened = false;
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return true;
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}
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/**
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* Logs $message using PHP's error_log() function. The message is also
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* passed along to any Log_observer instances that are observing this Log.
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*
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* @param mixed $message String or object containing the message to log.
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* @param string $priority The priority of the message. Valid
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* values are: PEAR_LOG_EMERG, PEAR_LOG_ALERT,
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* PEAR_LOG_CRIT, PEAR_LOG_ERR, PEAR_LOG_WARNING,
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* PEAR_LOG_NOTICE, PEAR_LOG_INFO, and PEAR_LOG_DEBUG.
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* @return boolean True on success or false on failure.
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* @access public
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*/
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function log($message, $priority = null)
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{
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/* If a priority hasn't been specified, use the default value. */
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if ($priority === null) {
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$priority = $this->_priority;
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}
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/* Abort early if the priority is above the maximum logging level. */
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if (!$this->_isMasked($priority)) {
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return false;
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}
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/* Extract the string representation of the message. */
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$message = $this->_extractMessage($message);
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/* Build the string containing the complete log line. */
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$line = $this->_format($this->_lineFormat,
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strftime($this->_timeFormat),
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$priority, $message);
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/* Pass the log line and parameters to the error_log() function. */
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$success = error_log($line, $this->_type, $this->_destination,
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$this->_extra_headers);
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$this->_announce(array('priority' => $priority, 'message' => $message));
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return $success;
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}
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}
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