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
// 自定义异常函数
set_exception_handler(&#39;handle_exception&#39;);
// 自定义错误函数
set_error_handler(&#39;handle_error&#39;);
/**
 * 异常处理
 *
 * @param mixed $exception 异常对象
 * @author www.phprm.com
 */
function handle_exception($exception) {
    Error::exceptionError($exception);
}
/**
 * 错误处理
 *
 * @param string $errNo 错误代码
 * @param string $errStr 错误信息
 * @param string $errFile 出错文件
 * @param string $errLine 出错行
 * @author www.phprm.com
 */
function handle_error($errNo, $errStr, $errFile, $errLine) {
    if ($errNo) {
        Error::systemError($errStr, false, true, false);
    }
}
/**
 * 系统错误处理
 *
 * @author http://www.phprm.com
 */
class Error {
    public static function systemError($message, $show = true, $save = true, $halt = true) {
        list($showTrace, $logTrace) = self::debugBacktrace();
        if ($save) {
            $messageSave = &#39;<b>&#39; . $message . &#39;</b><br /><b>PHP:</b>&#39; . $logTrace;
            self::writeErrorLog($messageSave);
        }
        if ($show) {
            self::showError(&#39;system&#39;, "<li>$message</li>", $showTrace, 0);
        }
        if ($halt) {
            exit();
        } else {
            return $message;
        }
    }
    /**
     * 代码执行过程回溯信息
     *
     * @static
     * @access public
     */
    public static function debugBacktrace() {
        $skipFunc[] = &#39;Error->debugBacktrace&#39;;
        $show = $log = &#39;&#39;;
        $debugBacktrace = debug_backtrace();
        ksort($debugBacktrace);
        foreach ($debugBacktrace as $k => $error) {
            if (!isset($error[&#39;file&#39;])) {
                // 利用反射API来获取方法/函数所在的文件和行数
                try {
                    if (isset($error[&#39;class&#39;])) {
                        $reflection = new ReflectionMethod($error[&#39;class&#39;], $error[&#39;function&#39;]);
                    } else {
                        $reflection = new ReflectionFunction($error[&#39;function&#39;]);
                    }
                    $error[&#39;file&#39;] = $reflection->getFileName();
                    $error[&#39;line&#39;] = $reflection->getStartLine();
                }
                catch(Exception $e) {
                    continue;
                }
            }
            $file = str_replace(SITE_PATH, &#39;&#39;, $error[&#39;file&#39;]);
            $func = isset($error[&#39;class&#39;]) ? $error[&#39;class&#39;] : &#39;&#39;;
            $func.= isset($error[&#39;type&#39;]) ? $error[&#39;type&#39;] : &#39;&#39;;
            $func.= isset($error[&#39;function&#39;]) ? $error[&#39;function&#39;] : &#39;&#39;;
            if (in_array($func, $skipFunc)) {
                break;
            }
            $error[&#39;line&#39;] = sprintf(&#39;%04d&#39;, $error[&#39;line&#39;]);
            $show.= &#39;<li>[Line: &#39; . $error[&#39;line&#39;] . &#39;]&#39; . $file . &#39;(&#39; . $func . &#39;)</li>&#39;;
            $log.= !empty($log) ? &#39; -> &#39; : &#39;&#39;;
            $log.= $file . &#39;:&#39; . $error[&#39;line&#39;];
        }
        return array(
            $show,
            $log
        );
    }
    /**
     * 异常处理
     *
     * @static
     * @access public
     * @param mixed $exception
     */
    public static function exceptionError($exception) {
        if ($exception instanceof DbException) {
            $type = &#39;db&#39;;
        } else {
            $type = &#39;system&#39;;
        }
        if ($type == &#39;db&#39;) {
            $errorMsg = &#39;(&#39; . $exception->getCode() . &#39;) &#39;;
            $errorMsg.= self::sqlClear($exception->getMessage() , $exception->getDbConfig());
            if ($exception->getSql()) {
                $errorMsg.= &#39;<div class="sql">&#39;;
                $errorMsg.= self::sqlClear($exception->getSql() , $exception->getDbConfig());
                $errorMsg.= &#39;</div>&#39;;
            }
        } else {
            $errorMsg = $exception->getMessage();
        }
        $trace = $exception->getTrace();
        krsort($trace);
        $trace[] = array(
            &#39;file&#39; => $exception->getFile() ,
            &#39;line&#39; => $exception->getLine() ,
            &#39;function&#39; => &#39;break&#39;
        );
        $phpMsg = array();
        foreach ($trace as $error) {
            if (!empty($error[&#39;function&#39;])) {
                $fun = &#39;&#39;;
                if (!empty($error[&#39;class&#39;])) {
                    $fun.= $error[&#39;class&#39;] . $error[&#39;type&#39;];
                }
                $fun.= $error[&#39;function&#39;] . &#39;(&#39;;
                if (!empty($error[&#39;args&#39;])) {
                    $mark = &#39;&#39;;
                    foreach ($error[&#39;args&#39;] as $arg) {
                        $fun.= $mark;
                        if (is_array($arg)) {
                            $fun.= &#39;Array&#39;;
                        } elseif (is_bool($arg)) {
                            $fun.= $arg ? &#39;true&#39; : &#39;false&#39;;
                        } elseif (is_int($arg)) {
                            $fun.= (defined(&#39;SITE_DEBUG&#39;) && SITE_DEBUG) ? $arg : &#39;%d&#39;;
                        } elseif (is_float($arg)) {
                            $fun.= (defined(&#39;SITE_DEBUG&#39;) && SITE_DEBUG) ? $arg : &#39;%f&#39;;
                        } else {
                            $fun.= (defined(&#39;SITE_DEBUG&#39;) && SITE_DEBUG) ? &#39;&#39;&#39; . htmlspecialchars(substr(self::clear($arg), 0, 10)) . (strlen($arg) > 10 ? &#39; . . . &#39; : &#39;&#39;) . &#39;&#39;&#39; : &#39;%s&#39;;
                        }
                        $mark = &#39;, &#39;;
                    }
                }
                $fun.= &#39;)&#39;;
                $error[&#39;function&#39;] = $fun;
            }
            if (!isset($error[&#39;line&#39;])) {
                continue;
            }
            $phpMsg[] = array(
                &#39;file&#39; => str_replace(array(
                    SITE_PATH,
                    &#39;&#39;
                ) , array(
                    &#39;&#39;,
                    &#39;/&#39;
                ) , $error[&#39;file&#39;]) ,
                &#39;line&#39; => $error[&#39;line&#39;],
                &#39;function&#39; => $error[&#39;function&#39;]
            );
        }
        self::showError($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 . &#39;/&#39; . date(&#39;Y.m.d&#39;) . &#39;_errorlog.php&#39;;
        $hash = md5($message);
        $userId = 0;
        $ip = get_client_ip();
        $user = &#39;<b>User:</b> userId=&#39; . intval($userId) . &#39;; IP=&#39; . $ip . &#39;; RIP:&#39; . $_SERVER[&#39;REMOTE_ADDR&#39;];
        $uri = &#39;Request: &#39; . htmlspecialchars(self::clear($_SERVER[&#39;REQUEST_URI&#39;]));
        $message = "<?php exit;?> {$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, &#39;rb&#39;);
            $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] != &#39;<?php exit;?>&#39;) {
                        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(&#39;SITE_DEBUG&#39;) && SITE_DEBUG)) {
            $message = str_replace($dbConfig[&#39;database&#39;], &#39;***&#39;, $message);
            //$message = str_replace($dbConfig[&#39;prefix&#39;], &#39;***&#39;, $message);
            $message = str_replace(C(&#39;DB_PREFIX&#39;) , &#39;***&#39;, $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 = &#39;&#39;) {
        global $_G;
        $errorMsg = str_replace(SITE_PATH, &#39;&#39;, $errorMsg);
        ob_end_clean();
        $host = $_SERVER[&#39;HTTP_HOST&#39;];
        $title = $type == &#39;db&#39; ? &#39;Database&#39; : &#39;System&#39;;
        echo <<<EOT
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
 <title>$host - $title Error</title>
 <meta http-equiv="Content-Type" content="text/html; charset={$_G[&#39;config&#39;][&#39;output&#39;][&#39;charset&#39;]}" />
 <meta name="ROBOTS" content="NOINDEX,NOFOLLOW,NOARCHIVE" />
 <style type="text/css">
 <!--
 body { background-color: white; color: black; font: 9pt/11pt verdana, arial, sans-serif;}
 #container {margin: 10px;}
 #message {width: 1024px; color: black;}
 .red {color: red;}
 a:link {font: 9pt/11pt verdana, arial, sans-serif; color: red;}
 a:visited {font: 9pt/11pt verdana, arial, sans-serif; color: #4e4e4e;}
 h1 {color: #FF0000; font: 18pt "Verdana"; margin-bottom: 0.5em;}
 .bg1 {background-color: #FFFFCC;}
 .bg2 {background-color: #EEEEEE;}
 .table {background: #AAAAAA; font: 11pt Menlo,Consolas,"Lucida Console"}
 .info {
  background: none repeat scroll 0 0 #F3F3F3;
  border: 0px solid #aaaaaa;
  border-radius: 10px 10px 10px 10px;
  color: #000000;
  font-size: 11pt;
  line-height: 160%;
  margin-bottom: 1em;
  padding: 1em;
 }
 .help {
  background: #F3F3F3;
  border-radius: 10px 10px 10px 10px;
  font: 12px verdana, arial, sans-serif;
  text-align: center;
  line-height: 160%;
  padding: 1em;
 }
 .sql {
  background: none repeat scroll 0 0 #FFFFCC;
  border: 1px solid #aaaaaa;
  color: #000000;
  font: arial, sans-serif;
  font-size: 9pt;
  line-height: 160%;
  margin-top: 1em;
  padding: 4px;
 }
 -->
 </style>
</head>
<body>
<div id="container">
<h1 id="title-nbsp-Error">$title Error</h1>
<div class=&#39;info&#39;>$errorMsg</div>
EOT;
        if (!empty($phpMsg)) {
            echo &#39;<div class="info">&#39;;
            echo &#39;<p><strong>PHP Debug</strong></p>&#39;;
            echo &#39;<table cellpadding="5" cellspacing="1" width="100%" class="table"><tbody>&#39;;
            if (is_array($phpMsg)) {
                echo &#39;<tr class="bg2"><td>No.</td><td>File</td><td>Line</td><td>Code</td></tr>&#39;;
                foreach ($phpMsg as $k => $msg) {
                    $k++;
                    echo &#39;<tr class="bg1">&#39;;
                    echo &#39;<td>&#39; . $k . &#39;</td>&#39;;
                    echo &#39;<td>&#39; . $msg[&#39;file&#39;] . &#39;</td>&#39;;
                    echo &#39;<td>&#39; . $msg[&#39;line&#39;] . &#39;</td>&#39;;
                    echo &#39;<td>&#39; . $msg[&#39;function&#39;] . &#39;</td>&#39;;
                    echo &#39;</tr>&#39;;
                }
            } else {
                echo &#39;<tr><td><ul>&#39; . $phpMsg . &#39;</ul></td></tr>&#39;;
            }
            echo &#39;</tbody></table></div>&#39;;
        }
        echo <<<EOT
</div>
</body>
</html>
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 = &#39;&#39;, $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