关于CI框架源码的阅读以及系统常量文件constants.php配置的分析

[php]  
<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');  
/* 
|-------------------------------------------------------------------------- 
| File and Directory Modes 
|-------------------------------------------------------------------------- 
| These prefs 控制台、首选项 are used when checking and setting modes when working 
| with the file system.  The defaults are fine 罚款 on servers with proper 
| security, but you may wish (or even need) to change the values in 
| certain environments (Apache running a separate process for each 
| user, PHP under CGI with Apache suEXEC, etc.).  Octal values should 
| always be used to set the mode correctly. 
*/  
define('FILE_READ_MODE', 0644);  
define('FILE_WRITE_MODE', 0666);  
define('DIR_READ_MODE', 0755);  
define('DIR_WRITE_MODE', 0777);  
/* 
|-------------------------------------------------------------------------- 
| File Stream Modes 文件流模式 
|-------------------------------------------------------------------------- 
| These modes are used when working with fopen()/popen() 
*/  
define('FOPEN_READ',                            'rb');  
define('FOPEN_READ_WRITE',                      'r+b');  
define('FOPEN_WRITE_CREATE_DESTRUCTIVE',        'wb'); // truncates existing file data, use with care  
define('FOPEN_READ_WRITE_CREATE_DESTRUCTIVE',   'w+b'); // truncates existing file data, use with care  
define('FOPEN_WRITE_CREATE',                    'ab');  
define('FOPEN_READ_WRITE_CREATE',               'a+b');  
define('FOPEN_WRITE_CREATE_STRICT',             'xb');  
define('FOPEN_READ_WRITE_CREATE_STRICT',        'x+b');  
  
/* End of file constants.php */  
/* Location: ./application/config/constants.php */