PHP系统异常处理类程序

以前我们用过的异常处理函数都是单个的，下面我找到一个非常的不错的异常处理类系统，不但可以控制错误还能给出好的界面哦。

PHP:' . $logTrace;
            self::writeErrorLog($messageSave);
        }
        if ($show) {
            self::showError('system', "
$message
", $showTrace, 0);
        }
        if ($halt) {
            exit();
        } else {
            return $message;
        }
    }
    /**
     * 代码执行过程回溯信息
     *
     * @static
     * @access public
     */
    public static function debugBacktrace() {
        $skipFunc[] = 'Error->debugBacktrace';
        $show = $log = '';
        $debugBacktrace = debug_backtrace();
        ksort($debugBacktrace);
        foreach ($debugBacktrace as $k => $error) {
            if (!isset($error['file'])) {
                // 利用反射API来获取方法/函数所在的文件和行数
                try {
                    if (isset($error['class'])) {
                        $reflection = new ReflectionMethod($error['class'], $error['function']);
                    } else {
                        $reflection = new ReflectionFunction($error['function']);
                    }
                    $error['file'] = $reflection->getFileName();
                    $error['line'] = $reflection->getStartLine();
                }
                catch(Exception $e) {
                    continue;
                }
            }
            $file = str_replace(SITE_PATH, '', $error['file']);
            $func = isset($error['class']) ? $error['class'] : '';
            $func.= isset($error['type']) ? $error['type'] : '';
            $func.= isset($error['function']) ? $error['function'] : '';
            if (in_array($func, $skipFunc)) {
                break;
            }
            $error['line'] = sprintf('%04d', $error['line']);
            $show.= '
[Line: ' . $error['line'] . ']' . $file . '(' . $func . ')
';
            $log.= !empty($log) ? ' -> ' : '';
            $log.= $file . ':' . $error['line'];
        }
        return array(
            $show,
            $log
        );
    }
    /**
     * 异常处理
     *
     * @static
     * @access public
     * @param mixed $exception
     */
    public static function exceptionError($exception) {
        if ($exception instanceof DbException) {
            $type = 'db';
        } else {
            $type = 'system';
        }
        if ($type == 'db') {
            $errorMsg = '(' . $exception->getCode() . ') ';
            $errorMsg.= self::sqlClear($exception->getMessage() , $exception->getDbConfig());
            if ($exception->getSql()) {
                $errorMsg.= '
';
                $errorMsg.= self::sqlClear($exception->getSql() , $exception->getDbConfig());
                $errorMsg.= '
';
            }
        } else {
            $errorMsg = $exception->getMessage();
        }
        $trace = $exception->getTrace();
        krsort($trace);
        $trace[] = array(
            'file' => $exception->getFile() ,
            'line' => $exception->getLine() ,
            'function' => 'break'
        );
        $phpMsg = array();
        foreach ($trace as $error) {
            if (!empty($error['function'])) {
                $fun = '';
                if (!empty($error['class'])) {
                    $fun.= $error['class'] . $error['type'];
                }
                $fun.= $error['function'] . '(';
                if (!empty($error['args'])) {
                    $mark = '';
                    foreach ($error['args'] as $arg) {
                        $fun.= $mark;
                        if (is_array($arg)) {
                            $fun.= 'Array';
                        } elseif (is_bool($arg)) {
                            $fun.= $arg ? 'true' : 'false';
                        } elseif (is_int($arg)) {
                            $fun.= (defined('SITE_DEBUG') && SITE_DEBUG) ? $arg : '%d';
                        } elseif (is_float($arg)) {
                            $fun.= (defined('SITE_DEBUG') && SITE_DEBUG) ? $arg : '%f';
                        } else {
                            $fun.= (defined('SITE_DEBUG') && SITE_DEBUG) ? ''' . htmlspecialchars(substr(self::clear($arg), 0, 10)) . (strlen($arg) > 10 ? ' . . . ' : '') . ''' : '%s';
                        }
                        $mark = ', ';
                    }
                }
                $fun.= ')';
                $error['function'] = $fun;
            }
            if (!isset($error['line'])) {
                continue;
            }
            $phpMsg[] = array(
                'file' => str_replace(array(
                    SITE_PATH,
                    ''
                ) , array(
                    '',
                    '/'
                ) , $error['file']) ,
                'line' => $error['line'],
                'function' => $error['function']
            );
        }
        self::showError($type, $errorMsg, $phpMsg);
        exit();
    }
    /**
     * 记录错误日志
     *
     * @static
     * @access public
     * @param string $message
     */
    public static function writeErrorLog($message) {
        return false; // 暂时不写入 http://www.phprm.com
        $message = self::clear($message);
        $time = time();
        $file = LOG_PATH . '/' . date('Y.m.d') . '_errorlog.php';
        $hash = md5($message);
        $userId = 0;
        $ip = get_client_ip();
        $user = 'User: userId=' . intval($userId) . '; IP=' . $ip . '; RIP:' . $_SERVER['REMOTE_ADDR'];
        $uri = 'Request: ' . htmlspecialchars(self::clear($_SERVER['REQUEST_URI']));
        $message = " {$time} $message $hash $user $uri ";
        // 判断该$message是否在时间间隔$maxtime内已记录过，有，则不用再记录了
        if (is_file($file)) {
            $fp = @fopen($file, 'rb');
            $lastlen = 50000; // 读取最后的 $lastlen 长度字节内容
            $maxtime = 60 * 10; // 时间间隔：10分钟
            $offset = filesize($file) - $lastlen;
            if ($offset > 0) {
                fseek($fp, $offset);
            }
            if ($data = fread($fp, $lastlen)) {
                $array = explode(" ", $data);
                if (is_array($array)) foreach ($array as $key => $val) {
                    $row = explode(" ", $val);
                    if ($row[0] != '') {
                        continue;
                    }
                    if ($row[3] == $hash && ($row[1] > $time - $maxtime)) {
                        return;
                    }
                }
            }
        }
        error_log($message, 3, $file);
    }
    /**
     * 清除文本部分字符
     *
     * @param string $message
     */
    public static function clear($message) {
        return str_replace(array(
            " ",
            " ",
            " "
        ) , " ", $message);
    }
    /**
     * sql语句字符清理
     *
     * @static
     * @access public
     * @param string $message
     * @param string $dbConfig
     */
    public static function sqlClear($message, $dbConfig) {
        $message = self::clear($message);
        if (!(defined('SITE_DEBUG') && SITE_DEBUG)) {
            $message = str_replace($dbConfig['database'], '***', $message);
            //$message = str_replace($dbConfig['prefix'], '***', $message);
            $message = str_replace(C('DB_PREFIX') , '***', $message);
        }
        $message = htmlspecialchars($message);
        return $message;
    }
    /**
     * 显示错误
     *
     * @static
     * @access public
     * @param string $type 错误类型 db,system
     * @param string $errorMsg
     * @param string $phpMsg
     */
    public static function showError($type, $errorMsg, $phpMsg = '') {
        global $_G;
        $errorMsg = str_replace(SITE_PATH, '', $errorMsg);
        ob_end_clean();
        $host = $_SERVER['HTTP_HOST'];
        $title = $type == 'db' ? 'Database' : 'System';
        echo <<


 
 
 
 



$title Error
$errorMsg
EOT;
        if (!empty($phpMsg)) {
            echo '
';
            echo '
PHP Debug
';
            echo '';
            if (is_array($phpMsg)) {
                echo '';
                foreach ($phpMsg as $k => $msg) {
                    $k++;
                    echo '';
                    echo '';
                    echo '';
                    echo '';
                    echo '';
                    echo '';
                }
            } else {
                echo '';
            }
            echo '
No.
File
Line
Code
' . $k . '
' . $msg['file'] . '
' . $msg['line'] . '
' . $msg['function'] . '
' . $phpMsg . '
';
        }
        echo <<


EOT;
        exit();
    }
}
/**
 * DB异常类
 *
 * @author www.phprm.com
 */
class DbException extends Exception {
    protected $sql;
    protected $dbConfig; // 当前数据库配置信息
    public function __construct($message, $code = 0, $sql = '', $dbConfig = array()) {
        $this->sql = $sql;
        $this->dbConfig = $dbConfig;
        parent::__construct($message, $code);
    }
    public function getSql() {
        return $this->sql;
    }
    public function getDbConfig() {
        return $this->dbConfig;
    }
}
?>

效果图：PHP系统异常处理类程序