display.php

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<?php
class Log_display extends Log
{
    var $_lineFormat = '<b>%3$s</b>: %4$s';

    var $_timeFormat = '%b %d %H:%M:%S';

    function Log_display($name = '', $ident = '', $conf = array(),
                         $level = PEAR_LOG_DEBUG)
    {
        $this->_id = md5(microtime());
        $this->_ident = $ident;
        $this->_mask = Log::UPTO($level);

        /* Start by configuring the line format. */
        if (!empty($conf['lineFormat'])) {
            $this->_lineFormat = str_replace(array_keys($this->_formatMap),
                                             array_values($this->_formatMap),
                                             $conf['lineFormat']);
        }

        /* We may need to prepend a string to our line format. */
        $prepend = null;
        if (isset($conf['error_prepend'])) {
            $prepend = $conf['error_prepend'];
        } else {
            $prepend = ini_get('error_prepend_string');
        }
        if (!empty($prepend)) {
            $this->_lineFormat = $prepend . $this->_lineFormat;
        }

        /* We may also need to append a string to our line format. */
        $append = null;
        if (isset($conf['error_append'])) {
            $append = $conf['error_append'];
        } else {
            $append = ini_get('error_append_string');
        }
        if (!empty($append)) {
            $this->_lineFormat .= $append;
        }

        /* Lastly, the line ending sequence is also configurable. */
        if (isset($conf['linebreak'])) {
            $this->_lineFormat .= $conf['linebreak'];
        } else {
            $this->_lineFormat .= "<br />\n";
        }

        /* The user can also change the time format. */
        if (!empty($conf['timeFormat'])) {
            $this->_timeFormat = $conf['timeFormat'];
        }
    }

    function open()
    {
        $this->_opened = true;
        return true;
    }

    function close()
    {
        $this->_opened = false;
        return true;
    }

    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 $this->_format($this->_lineFormat,
                            strftime($this->_timeFormat),
                            $priority,
                            nl2br(htmlspecialchars($message)));

        /* Notify observers about this log message. */
        $this->_announce(array('priority' => $priority, 'message' => $message));

        return true;
    }

}