* @since Log 1.8.0
* @package Log
*
* @example display.php Using the display handler.
*/
class Log_display extends Log
{
/**
* String to output before an error message
* @var string
* @access private
*/
var $_error_prepend = '';
/**
* String to output after an error message
* @var string
* @access private
*/
var $_error_append = '';
/**
* String used to represent a line break.
* @var string
* @access private
*/
var $_linebreak = "
\n";
/**
* Constructs a new Log_display object.
*
* @param string $name Ignored.
* @param string $ident The identity string.
* @param array $conf The configuration array.
* @param int $level Log messages up to and including this level.
* @access public
*/
function Log_display($name = '', $ident = '', $conf = array(),
$level = PEAR_LOG_DEBUG)
{
$this->_id = md5(microtime());
$this->_ident = $ident;
$this->_mask = Log::UPTO($level);
if (isset($conf['error_prepend'])) {
$this->_error_prepend = $conf['error_prepend'];
} else {
$this->_error_prepend = ini_get('error_prepend_string');
}
if (isset($conf['error_append'])) {
$this->_error_append = $conf['error_append'];
} else {
$this->_error_append = ini_get('error_append_string');
}
if (isset($conf['linebreak'])) {
$this->_linebreak = $conf['linebreak'];
}
}
/**
* Opens the display handler.
*
* @access public
* @since Log 1.9.6
*/
function open()
{
$this->_opened = true;
return true;
}
/**
* Closes the display handler.
*
* @access public
* @since Log 1.9.6
*/
function close()
{
$this->_opened = false;
return true;
}
/**
* Writes $message to the text browser. Also, passes the message
* along to any Log_observer instances that are observing this Log.
*
* @param mixed $message String or object containing the message to log.
* @param string $priority The priority of the message. Valid
* values are: PEAR_LOG_EMERG, PEAR_LOG_ALERT,
* PEAR_LOG_CRIT, PEAR_LOG_ERR, PEAR_LOG_WARNING,
* PEAR_LOG_NOTICE, PEAR_LOG_INFO, and PEAR_LOG_DEBUG.
* @return boolean True on success or false on failure.
* @access public
*/
function log($message, $priority = null)
{
/* If a priority hasn't been specified, use the default value. */
if ($priority === null) {
$priority = $this->_priority;
}
/* Abort early if the priority is above the maximum logging level. */
if (!$this->_isMasked($priority)) {
return false;
}
/* Extract the string representation of the message. */
$message = $this->_extractMessage($message);
/* Build and output the complete log line. */
echo $this->_error_prepend .
'' . ucfirst($this->priorityToString($priority)) . ': '.
nl2br(htmlspecialchars($message)) .
$this->_error_append . $this->_linebreak;
/* Notify observers about this log message. */
$this->_announce(array('priority' => $priority, 'message' => $message));
return true;
}
}