PHP系统异常处理类程序

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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系统异常处理类程序代码如下:

<?php

// 自定义异常函数

set_exception_handler('handle_exception');

// 自定义错误函数

set_error_handler('handle_error');

/**

* 异常处理

*

* @param mixed $exception 异常对象

* @author www.phpfensi.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.phpfensi.com

*/

function handle_error($errNo, $errStr, $errFile, $errLine) {

if ($errNo) {

  Error::systemError($errStr, false, true, false);

}

}

/**

* 系统错误处理

*

* @author www.phpfensi.com

*/

class Error {

public static function systemError($message, $show = true, $save = true, $halt = true) {

  list($showTrace, $logTrace) = self::debugBacktrace();

  if ($save) {

   $messageSave = '<b>' . $message . '</b><br /><b>PHP:</b>' . $logTrace;

   self::writeErrorLog($messageSave);

  }

  if ($show) {

   self::showError('system', "<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[] = '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 .= '<li>[Line: ' . $error['line'] . ']' . $file . '(' . $func . ')</li>';

   $log .= !emptyempty($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 .= '<div class="sql">';

    $errorMsg .= self::sqlClear($exception->getSql(), $exception->getDbConfig());

    $errorMsg .= '</div>';

   }

  } 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 (!emptyempty($error['function'])) {

    $fun = '';

    if (!emptyempty($error['class'])) {

     $fun .= $error['class'] . $error['type'];

    }

    $fun .= $error['function'] . '(';

    if (!emptyempty($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 www.phpfensi.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();

  $user = '<b>User:</b> userId=' . intval($userId) . '; IP=' . $ip . '; RIP:' . $_SERVER['REMOTE_ADDR'];

  $uri = 'Request: ' . htmlspecialchars(self::clear($_SERVER['REQUEST_URI']));

  $message = "<?php exit;?> {$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, '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] != '<?php exit;?>') {

       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 <<<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['config']['output']['charset']}" />

<meta name="ROBOTS" content="NOINDEX,NOFOLLOW,NOARCHIVE" />

<style type="text/css">



</style>

</head>

<body>

<div id="container">

<h1>$title Error</h1>

<div class='info'>$errorMsg</div>

EOT;

  if (!emptyempty($phpMsg)) {

   echo '<div class="info">';

   echo '<p><strong>PHP Debug</strong></p>';

   echo '<table cellpadding="5" cellspacing="1" width="100%" class="table"><tbody>';

   if (is_array($phpMsg)) {

    echo '<tr class="bg2"><td>No.</td><td>File</td><td>Line</td><td>Code</td></tr>';

    foreach ($phpMsg as $k => $msg) {

     $k++;

     echo '<tr class="bg1">';

     echo '<td>' . $k . '</td>';

     echo '<td>' . $msg['file'] . '</td>';

     echo '<td>' . $msg['line'] . '</td>';

     echo '<td>' . $msg['function'] . '</td>';

     echo '</tr>';

    }

   } else {

    echo '<tr><td><ul>' . $phpMsg . '</ul></td></tr>';

   }

   echo '</tbody></table></div>';

  }

  echo <<<EOT

</div>

</body>

</html>

EOT;

  exit();

}

}

/**

* DB异常类

*

* @author www.phpfensi.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);

}//开源代码phpfensi.com

public function getSql() {

  return $this->sql;

}

public function getDbConfig() {

  return $this->dbConfig;

}

}

?>

出处：http://www.phpfensi.com/php/20140922/5940.html

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