switch (ENVIRONMENT)
{
case 'development':
error_reporting(-1);
ini_set('display_errors', 1);
break;
case 'testing':
case 'production':
ini_set('display_errors', 0);
if (version_compare(PHP_VERSION, '5.3', '>='))
{
error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED & ~E_STRICT & ~E_USER_NOTICE & ~E_USER_DEPRECATED);
}
else
{
error_reporting(E_ALL & ~E_NOTICE & ~E_STRICT & ~E_USER_NOTICE);
}
break;
default:
header('HTTP/1.1 503 Service Unavailable.', TRUE, 503);
echo 'The application environment is not set correctly.';
exit(1); // EXIT_ERROR
}
3.设置系统目录常量
$system_path = 'system';
if (defined('STDIN'))
{
chdir(dirname(__FILE__));
}
if (($_temp = realpath($system_path)) !== FALSE)
{
$system_path = $_temp.DIRECTORY_SEPARATOR;
}
else
{
// Ensure there's a trailing slash
$system_path = strtr(
rtrim($system_path, '/\\'),
'/\\',
DIRECTORY_SEPARATOR.DIRECTORY_SEPARATOR
).DIRECTORY_SEPARATOR;
}
// Is the system path correct?
if ( ! is_dir($system_path))
{
header('HTTP/1.1 503 Service Unavailable.', TRUE, 503);
echo 'Your system folder path does not appear to be set correctly. Please open the following file and correct this: '.pathinfo(__FILE__, PATHINFO_BASENAME);
exit(3); // EXIT_CONFIG
}
// The name of THIS file
define('SELF', pathinfo(__FILE__, PATHINFO_BASENAME));
// Path to the system directory
define('BASEPATH', $system_path);
// Path to the front controller (this file) directory
define('FCPATH', dirname(__FILE__).DIRECTORY_SEPARATOR);
// Name of the "system" directory
define('SYSDIR', basename(BASEPATH));
4.设置应用常量目录
$application_folder = 'application';
// The path to the "application" directory
if (is_dir($application_folder))
{
if (($_temp = realpath($application_folder)) !== FALSE)
{
$application_folder = $_temp;
}
else
{
$application_folder = strtr(
rtrim($application_folder, '/\\'),
'/\\',
DIRECTORY_SEPARATOR.DIRECTORY_SEPARATOR
);
}
}
elseif (is_dir(BASEPATH.$application_folder.DIRECTORY_SEPARATOR))
{
$application_folder = BASEPATH.strtr(
trim($application_folder, '/\\'),
'/\\',
DIRECTORY_SEPARATOR.DIRECTORY_SEPARATOR
);
}
else
{
header('HTTP/1.1 503 Service Unavailable.', TRUE, 503);
echo 'Your application folder path does not appear to be set correctly. Please open the following file and correct this: '.SELF;
exit(3); // EXIT_CONFIG
}
define('APPPATH', $application_folder.DIRECTORY_SEPARATOR);
5.设置视图路径常量
$view_folder = '';
// The path to the "views" directory
if ( ! isset($view_folder[0]) && is_dir(APPPATH.'views'.DIRECTORY_SEPARATOR))
{
$view_folder = APPPATH.'views';
}
elseif (is_dir($view_folder))
{
if (($_temp = realpath($view_folder)) !== FALSE)
{
$view_folder = $_temp;
}
else
{
$view_folder = strtr(
rtrim($view_folder, '/\\'),
'/\\',
DIRECTORY_SEPARATOR.DIRECTORY_SEPARATOR
);
}
}
elseif (is_dir(APPPATH.$view_folder.DIRECTORY_SEPARATOR))
{
$view_folder = APPPATH.strtr(
trim($view_folder, '/\\'),
'/\\',
DIRECTORY_SEPARATOR.DIRECTORY_SEPARATOR
);
}
else
{
header('HTTP/1.1 503 Service Unavailable.', TRUE, 503);
echo 'Your view folder path does not appear to be set correctly. Please open the following file and correct this: '.SELF;
exit(3); // EXIT_CONFIG
}
define('VIEWPATH', $view_folder.DIRECTORY_SEPARATOR);
5.加载核心控制文件
/*
* --------------------------------------------------------------------
* LOAD THE BOOTSTRAP FILE
* --------------------------------------------------------------------
*
* And away we go...
*/
require_once BASEPATH.'core/CodeIgniter.php';