PHP写日志公共类

Txl_Log.php

<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
 *
 *
 *
 *
 * @package        TXL
 * @filesource
 */

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

/**
 * Logging Class
 *
 * @package        TXL
 * @subpackage    Libraries
 * @category    Logging
 */
class Txl_Log {

    protected $_log_path;
    protected $_date_fmt    = 'Y-m-d H:i:s';
    protected $_enabled    = TRUE;

    /**
     * Constructor
     */
    public function __construct()
    {
        $config =& get_config();
　　　　　//$config['log_path'] = '/data/logs/weili_sz/app/';
        $this->_log_path = ($config['log_path'] != '') ? $config['log_path'] : APPPATH.'logs/';

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

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

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

    public function log_curl($url, $post, $rs, $time=0, $api='curl')
    {
        if (is_array($post)) {
            $post = json_encode($post);
        }

        if (is_array($rs)) {
            $rs = json_encode($rs);
        }

        $this->write_log($url."\t[params]".$post."\t[ret]".$rs.($time?"\t".$time:"\t"), $api);
    }

    /**
     * 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($msg, $type='interface')
    {
        if ($this->_enabled === FALSE)
        {
            return FALSE;
        }

        //$filepath = $this->_log_path.'log-'.date('Y-m-d').'.php';
        $filepath = $this->_log_path.$type.'-'.date('Ymd').'.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)) //define('FOPEN_WRITE_CREATE', 'ab');
　　　　 {
            return FALSE;
        }

        $message .= date($this->_date_fmt). "\t".$msg."\n";

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

        @chmod($filepath, FILE_WRITE_MODE);//define('FILE_WRITE_MODE', 0666);
        return TRUE;
    }

}
// END Log Class