CodeIgniter错误日志信息+错误

Question

有没有一种方法可以在不调试的情况下保存日志，信息+错误？

如何了解调试级别与信息的关系？

如果我想记录“帐户id 4345已被管理员删除”的信息，为什么我需要查看所有这些信息：

DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 Config Class Initialized
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 Hooks Class Initialized
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 URI Class Initialized
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 Router Class Initialized
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 Output Class Initialized
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 Input Class Initialized
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 Global POST and COOKIE data sanitized
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 Language Class Initialized
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 Loader Class Initialized
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 Config file loaded: config/safe_charge.php
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 Config file loaded: config/web_fx.php
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 Helper loaded: loadutils_helper
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 Helper loaded: objectsutils_helper
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 Helper loaded: logutils_helper
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 Helper loaded: password_helper
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 Database Driver Class Initialized
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 cURL Class Initialized
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 Language Class Initialized
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 Config Class Initialized
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 Account MX_Controller Initialized
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 File loaded: ./modules/accounts/models/pending_account_model.php
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 Model Class Initialized
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 File loaded: ./modules/accounts/models/proccess_accounts_model.php
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 Model Class Initialized
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 File loaded: ./modules/accounts/models/web_fx_model.php
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 Model Class Initialized
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 File loaded: ./modules/accounts/models/trader_account_type_spreads.php
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 Model Class Initialized
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 File loaded: ./modules/accounts/models/trader_accounts.php
DEBUG - 2010-12-27 08:39:13 --> 192.168.200.32 Model Class Initialized

谢谢

Answer 1

来自CodeIgniter's docs

log_message('info', 'The purpose of some variable is to provide some value.');

信息性消息。这些是优先级最低的消息，只是给出了有关某个进程的信息。CodeIgniter本身并不生成任何info消息，但您可能希望在您的应用程序中生成。

注意:为了实际写入日志文件，"logs“文件夹必须是可写的。此外，您还必须设置日志记录的“阈值”。例如，您可能只希望记录错误消息，而不希望记录其他两种类型的错误消息。如果您将其设置为零，则将禁用日志记录。

Answer 2

在codeigniter 2中你不会遇到这个问题。

$config['log_threshold'] = array(1, 3);

在config/config.php中

和

log_message('info', 'The purpose of some variable is to provide some value.');

在您想要记录某些东西的地方，只会将该消息打印到日志文件中，而不会有多余的调试代码。

但

在codeIgniter 3中，许多系统核心文件都有

log_message('info'，*)；

喜欢

log_message('info', 'Config Class Initialized');
log_message('info', 'Controller Class Initialized');
log_message('info', 'Hooks Class Initialized');
............

这就是为什么当

$config['log_threshold'] = array(1, 3);

或

$config['log_threshold'] = array(3);

或

$config['log_threshold'] = 3;

则所有不需要的日志消息都会出现在日志文件中。

因此，解决此问题的一种方法是扩展所有核心文件并更改

log_message('info'

至

log_message('debug' 

或者创建一个新的阈值，比如

在config/config.php中

$config['log_threshold'] = array(1, 5);

在core/MY_Log.php中

protected $_levels = array('ERROR' => '1', 'DEBUG' => '2', 'INFO' => '3', 'ALL' => '4', 'USER_INFO' => '5');

完整的core/MY_Log.php文件

class MY_Log extends CI_Log
{

    protected $_log_path;
    protected $_threshold = 1;
    protected $_date_fmt = 'Y-m-d H:i:s';
    protected $_enabled = TRUE;
    protected $_levels = array('ERROR' => '1', 'DEBUG' => '2', 'INFO' => '3', 'ALL' => '4', 'USER_INFO' => '5');

    /**
     * Constructor
     */
    public function __construct()
    {
        parent::__construct();

        $config =& get_config();

        $this->_log_path = ($config['log_path'] !== '') ? $config['log_path'] : APPPATH.'logs/';
        $this->_file_ext = (isset($config['log_file_extension']) && $config['log_file_extension'] !== '')
            ? ltrim($config['log_file_extension'], '.') : 'log';

        file_exists($this->_log_path) OR mkdir($this->_log_path, 0755, TRUE);

        if ( ! is_dir($this->_log_path) OR ! is_really_writable($this->_log_path))
        {
            $this->_enabled = FALSE;
        }

        if (is_numeric($config['log_threshold']))
        {
            $this->_threshold = (int) $config['log_threshold'];
        }
        elseif (is_array($config['log_threshold']))
        {
            $this->_threshold = 0;
            $this->_threshold_array = array_flip($config['log_threshold']);
        }

        if ( ! empty($config['log_date_format']))
        {
            $this->_date_fmt = $config['log_date_format'];
        }

        if ( ! empty($config['log_file_permissions']) && is_int($config['log_file_permissions']))
        {
            $this->_file_permissions = $config['log_file_permissions'];
        }
    }

    // --------------------------------------------------------------------

    /**
     * Write Log File
     *
     * Generally this function will be called using the global log_message() function
     *
     * @param string the error level
     * @param string the error message
     * @param bool whether the error is a native PHP error
     * @return bool
     */
    public function write_log($level = 'error', $msg, $php_error = FALSE)
    {

        if ($this->_enabled === FALSE)
        {
            return FALSE;
        }

        $level = strtoupper($level);

        if (( ! isset($this->_levels[$level]) OR ($this->_levels[$level] > $this->_threshold))
            && ! isset($this->_threshold_array[$this->_levels[$level]]))
        {
            return FALSE;
        }

        if($level == 'USER_INFO')
        {
            $filepath = $this->_log_path . 'info-log-' . date('Y-m-d') . '.php';
        }
        else
        {
            $filepath = $this->_log_path . 'log-' . date('Y-m-d') . '.php';
        }

        $message = '';

        if ( ! file_exists($filepath))
        {
            $newfile = TRUE;
            // Only add protection to php files
            if ($this->_file_ext === 'php')
            {
                $message .= "<?php defined('BASEPATH') OR exit('No direct script access allowed'); ?>\n\n";
            }
        }

        if ( ! $fp = @fopen($filepath, 'ab'))
        {
            return FALSE;
        }

        // Instantiating DateTime with microseconds appended to initial date is needed for proper support of this format
        if (strpos($this->_date_fmt, 'u') !== FALSE)
        {
            $microtime_full = microtime(TRUE);
            $microtime_short = sprintf("%06d", ($microtime_full - floor($microtime_full)) * 1000000);
            $date = new DateTime(date('Y-m-d H:i:s.'.$microtime_short, $microtime_full));
            $date = $date->format($this->_date_fmt);
        }
        else
        {
            $date = date($this->_date_fmt);
        }

        $message .= $level.' - '.$date.' --> '.$msg."\n";

        flock($fp, LOCK_EX);

        for ($written = 0, $length = strlen($message); $written < $length; $written += $result)
        {
            if (($result = fwrite($fp, substr($message, $written))) === FALSE)
            {
                break;
            }
        }

        flock($fp, LOCK_UN);
        fclose($fp);

        if (isset($newfile) && $newfile === TRUE)
        {
            chmod($filepath, $this->_file_permissions);
        }

        return is_int($result);
    }

}

Answer 3

我意识到这个问题已经很老了，但我自己也遇到了同样的问题，并且能够修改日志库来解决它。

修改Log.php中的write_log函数，如下所示：

  public function write_log($level = 'error', $msg, $php_error = FALSE)
    {
        if ($this->_enabled === FALSE)
        {
            return FALSE;
        }

        $level = strtoupper($level);

        if ( ! isset($this->_levels[$level]))
        {
            return FALSE;
        }
        if (($this->_levels[$level] > $this->_threshold) OR (is_array($this->_threshold) && !in_array($this->_levels[$level], $this->_threshold)))
        {
            return FALSE;
        }



        $filepath = $this->_log_path.'log-'.date('Y-m-d').'.php';
        $message  = '';

        if ( ! file_exists($filepath))
        {
            $message .= "<"."?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed'); ?".">\n\n";
        }

        if ( ! $fp = @fopen($filepath, FOPEN_WRITE_CREATE))
        {
            return FALSE;
        }

        $message .= $level.' '.(($level == 'INFO') ? ' -' : '-').' '.date($this->_date_fmt). ' --> '.$msg."\n";

        flock($fp, LOCK_EX);
        fwrite($fp, $message);
        flock($fp, LOCK_UN);
        fclose($fp);

        @chmod($filepath, FILE_WRITE_MODE);
        return TRUE;
    }

然后，您可以在配置文件中指定一个数组：

$config['log_threshold'] = array(3, 1);

然后，您的日志文件将如下所示：

ERROR - 2013-07-24 13:50:04 --> Severity: Warning  --> 
INFO  - 2013-07-24 13:50:04 --> The purpose of some variable is to provide some value.
ERROR - 2013-07-24 13:50:06 --> 404 Page Not Found --> 404.shtml