CI框架系统常量文件constants.php的配置解读

/*
|--------------------------------------------------------------------------
| file and directory modes
|--------------------------------------------------------------------------
*/
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 */
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