一个显示效果非常不错的PHP错误、异常处理类

一、效果图：

二、实现代码

复制代码 代码如下: <?php

// 自定义异常函数
t_exception_handler(‘handle_exception’);

// 自定义错误函数
t_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, fal, true, fal);
}
}

/**
* 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) = lf::debugbacktrace();

if ($save) {
$messagesave = ‘<b>’ . $message . ‘</b><br /><b>php:</b>’ . $logtrace;
lf::writeerrorlog($messagesave);
}

if ($show) {
lf::showerror(‘system’, “南国早报电子版<li>$message</li>”, $showtrace, 0);
}

if ($halt) {
exit();
} el {
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 => $error) {
if (!ist($error[‘file’])) {
// 利用反射api来获取方法/函数所在的文件和行数
try {
if (ist($error[‘class’])) {
$reflection = new reflectionmethod($error[‘class’], $error[‘function’]);
} el {
$reflection = new reflectionfunction($error[‘function’]);
}
$error[‘file’] = $reflection->getfilename();
$error[‘line’] = $reflection->getstartline();
} catch (exception $e) {
continue;
}
}

$file = str_replace(site_path, ”, $error[‘file’]);
$func = ist($error[‘class’]) ? $error[‘class’] : ”;
$func .= ist($error[‘type’]) ? $error[‘type’] : ”;
$func .= ist($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’;
} el {
$type = ‘system’;
}
if ($type == ‘db’) {
$errormsg = ‘(‘ . $exception->getcode() . ‘) ‘;
$errormsg .= lf::sqlclear($exception->getmessage(), $exception->getdbconfig());
if ($exception->getsql()) {
$errormsg .= ‘<div class=”sql”>’;
$errormsg .= lf::sqlclear($exception->getsql(), $exception->getdbconfig());
$errormsg .= ‘</div>’;
}
} el {
$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’];
}
$粉底原料fun .= $error[‘function’] . ‘(‘;
if (!empty($error[‘args’])) {
$mark = ”;
foreach ($error[‘args’] as $arg) {
$fun .= $mark;
if (is_array($arg)) {
$fun .= ‘array’;
} elif (is_bool($arg)) {
$fun .= $arg ? ‘true’ : ‘fal’;
} elif (is_int($arg)) {
$fun .= (defined(‘site_debug’) && site_debug) ? $arg : ‘%d’;
} elif (is_float($arg)) {
$fun .= (defined(‘site_debug’) && site_debug) ? $arg : ‘%f’;
} el {
$fun .= (defined(‘site_debug’) && site_debug) ? ‘\” . htmlspecialchars(substr(lf::clear($arg), 0, 10)) . (strlen($arg) > 10 ? ‘ …’ : ”) . ‘\” : ‘%s’;
}
$mark = ‘, ‘;
}
}
$fun .= ‘)’;
$error[‘function’] = $fun;
}
if (!ist($error[‘line’])) {
continue;
}
$phpmsg[] = array(‘file’ => str_replace(array(site_path, ‘\\’), array(”, ‘/’), $error[‘file’]), ‘line’ => $error[‘line’], ‘function’ => $error[‘function’]);
}
lf::showerror($type, $errormsg, $phpmsg);
exit();g1620
}

/**
* 记录错误日志
*
* @static
* @access public
* @param string $message
*/
public static function writeerrorlog($message) {

return fal; // 暂时不写入

$message = lf::clear($message);
$time = time();
$file = log_path . ‘/’ . date(‘y.m.d’) . ‘_errorlog.php’;
$hash = md5($message);

$urid = 0;
$ip = get_client_ip();

$ur = ‘<b>ur:</b> urid=’ . intval($urid) . ‘; ip=’ . $ip . ‘; rip:’ . $_rver[‘remote_addr’];
$uri = ‘request: ‘ . htmlspecialchars(lf::clear($_rver[‘request_uri’]));
$message = “<?php exit;?>\t{$time}\t$message\t$hash\t$ur $uri\n”;

// 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
$offt = filesize($file) – $lastlen;
if ($offt > 0) {
fek($fp, $offt);
}
if ($data = fread($fp, $lastlen)) {
$array = explode(“\n”, $data);
if (is_array($array))
foreach ($array as $key => $val) {
$row = explode(“\t”, $val);
if ($row[0] != &长江中下游分界点#8216;<?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) {
$message = lf::clear($message);
if (!(defined(‘site_debug’) && site_debug)) {
$message = str_replace($dbconfig[‘databa’], ‘***’, $message);
//$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 = $_rver[‘http_host’];
$title = $type == ‘db’ ? ‘databa’ : ‘system’;
echo <<<eot
<!doctype html public “-//w3c//dtd xhtml 1.0 transitional//en” “/d/file/titlepic/xhtml1-transitional.dtd& /><html>
<head>
<title>$host – $title error</title>
<meta http-equiv=”content-type” content=”text/html; chart={$_g[‘config’][‘output’][‘chart’]}” />
<meta name=”robots” content=”noindex,nofollow,noarchive” />
<style type=”text/css”>
<!–
body { background-color: white; color: black; font: 9pt/11pt verdana, arial, sans-rif;}
#container {margin: 10px;}
#message {width: 1024px; color: black;}
.red {color: red;}
a:link {font: 9pt/11pt verdana, arial, sans-rif; color: red;}
a:visited {font: 9pt/11pt verdana, arial, sans-rif; 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-rif;
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-rif;
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>’;
}
} el {
echo ‘<tr><td><ul>’ . $phpmsg . ‘</ul></td></tr>’;
}
echo ‘</tbody></table></div>’;
}
echo <两性常识<<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;
}
}