这篇文章主要介绍了一个显示效果非常不错的PHP错误、异常处理类,代码思路清晰,功能强大,需要的朋友可以参考下
一、效果图：
二、实现代码
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 $exception 异常对象
* @author blog.snsgou.com
*/
function handle_exception($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 $errLine 出错行
* @author blog.snsgou.com
*/
function handle_error($errNo, $errStr, $errFile, $errLine) {
if ($errNo) {
Error::systemError($errStr, false, true, false);
}
}
/**
* 系统错误处理
*
* @author blog.snsgou.com
*/
class Error {
public static function systemError($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>';
$log .= !empty($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 .= '<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 $error) {
if (!empty($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
$message = self::clear($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']));
$message = "<?php exit;?>t{$time}t$messaget$hasht$user $urin";
// 判断该$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("n", $data);
if (is_array($array))
foreach ($array as $key => $val) {
$row = explode("t", $val);
if ($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("t", "r", "n"), " ", $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">
<!--
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>$title Error</h1>
<div class='info'>$errorMsg</div>
EOT;
if (!empty($phpMsg)) {
echo '<div class="info">';
echo '<p><strong>PHP Debug</strong></p>';
echo '<table cellpadding="5" cellspacing="1" width="100%" class="table"><tbody>';
if (is_array($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 blog.snsgou.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;
}
}