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<?php
/**
* ErrorHandler with logger example
*
* This example show how to use a class with all necessary methods
* as an error handler for HTML_CSS.
* It used the new plug-in system introduces in version 1.0.0RC1
*
* PHP versions 4 and 5
*
* @category HTML
* @package HTML_CSS
* @subpackage Examples
* @author Klaus Guenther <klaus@capitalfocus.org>
* @author Laurent Laville <pear@laurent-laville.org>
* @copyright 2005-2009 Klaus Guenther, Laurent Laville
* @license http://www.opensource.org/licenses/bsd-license.php BSD
* @version CVS: $Id: CSS_Logger.php,v 1.10 2009/01/19 23:22:38 farell Exp $
* @link http://pear.php.net/package/HTML_CSS
* @since File available since Release 1.0.0RC1
* @ignore
*/
require_once 'HTML/CSS.php';
require_once 'PEAR.php';
/**
* This class creates a css error object
*
* @category HTML
* @package HTML_CSS
* @subpackage Examples
* @author Klaus Guenther <klaus@capitalfocus.org>
* @author Laurent Laville <pear@laurent-laville.org>
* @copyright 2005-2009 Klaus Guenther, Laurent Laville
* @license http://www.opensource.org/licenses/bsd-license.php BSD
* @link http://pear.php.net/package/HTML_CSS
* @since File available since Release 1.0.0RC1
* @ignore
*/
class MyErrorHandler
{
var $_display;
/**
* class constructor
*
* @param null|array $display (optional) display options hash
*/
function MyErrorHandler($display = null)
{
$default = array('lineFormat' => '<b>%1$s</b>: %2$s %3$s',
'contextFormat' => ' in <b>%3$s</b> ' .
'(file <b>%1$s</b> at line <b>%2$s</b>)',
'eol' => "\n"
);
if (is_array($display)) {
$this->_display = array_merge($default, $display);
} else {
$this->_display = $default;
}
}
/**
* HTML_CSS push_callback that won't die on Exception
*
* @param integer $code Error code.
* @param string $level The error level of the message.
*
* @return void
*/
function _handleError($code, $level)
{
return null;
}
/**
* Global PEAR error callback
*
* @param object $err PEAR_Error instance
*
* @return void
*/
function errorCallback($err)
{
$display_errors = ini_get('display_errors');
$log_errors = ini_get('log_errors');
$info = $err->getUserInfo();
$level = isset($info['errorLevel']) ? $info['errorLevel'] : 'notice';
$message = $err->getMessage();
$backtrace = $err->getBacktrace();
if ($display_errors) {
$this->display($message, $level, $backtrace);
}
if ($log_errors) {
$this->log($message, $level);
}
}
/**
* Print the current error in user log file
*
* @param string $message error message body
* @param string $level error level
*
* @return void
*/
function log($message, $level)
{
$log = array('eol' => "\n",
'lineFormat' => '%1$s %2$s [%3$s] %4$s',
'timeFormat' => '%b %d %H:%M:%S'
);
$msg = sprintf($log['lineFormat'] . $log['eol'],
strftime($log['timeFormat'], time()),
$_SERVER['REMOTE_ADDR'],
$level,
$message);
error_log($msg, 3, 'htmlcss.log');
}
/**
* Print the current error to main output (browser)
*
* @param string $message error message body
* @param string $level error level
* @param array $backtrace call context
*
* @return void
*/
function display($message, $level, $backtrace)
{
$backtrace = array_pop($backtrace);
if ($backtrace) {
$file = $backtrace['file'];
$line = $backtrace['line'];
if (isset($backtrace['class'])) {
$func = $backtrace['class'];
$func .= $backtrace['type'];
$func .= $backtrace['function'];
} else {
$func = $backtrace['function'];
}
}
$lineFormat = $this->_display['lineFormat'] . $this->_display['eol'];
$contextFormat = $this->_display['contextFormat'];
$contextExec = sprintf($contextFormat, $file, $line, $func);
printf($lineFormat, ucfirst($level), $message, $contextExec);
}
}
$myErrorHandler = new MyErrorHandler();
PEAR::setErrorHandling(PEAR_ERROR_CALLBACK,
array(&$myErrorHandler, 'errorCallback'));
ini_set('display_errors', 1);
ini_set('log_errors', 1);
$includes = get_included_files();
$display_errors = ini_get('display_errors');
$log_errors = ini_get('log_errors');
echo '<pre>';
print_r($includes);
printf("display_errors = %s\n", $display_errors);
printf("log_errors = %s\n", $log_errors);
echo '<hr />';
echo '</pre>';
/**
* avoid script to die on HTML_CSS API exception; line 155 will be reached
* @see HTML_CSS::setXhtmlCompliance()
*/
$prefs = array('push_callback' => array(&$myErrorHandler, '_handleError'));
$css = new HTML_CSS(null, $prefs);
$group1 = $css->createGroup('body, html', 'grp1');
$group2 = $css->createGroup('p, html', 'grp1');
echo '<hr />';
$options = array('lineFormat' => '<b>%1$s :</b> %2$s <br />%3$s',
'contextFormat' => '<b>Function :</b> %3$s <br/>'.
'<b>File :</b> %1$s <br /><b>Line :</b> %2$s <br/>'
);
$myErrorHandler = new MyErrorHandler($options);
PEAR::setErrorHandling(PEAR_ERROR_CALLBACK,
array(&$myErrorHandler, 'errorCallback'));
$css->setXhtmlCompliance('true'); // generate an API exception
print '<hr />';
print "still alive";
?>
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