我把ci的 loader函数改了下大神帮我看看?

php中文网

发布时间：2016-07-25 08:47:56

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来源于php中文网

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protected function _ci_load($_ci_data) {
// Set the default data variables
foreach (array('_ci_view', '_ci_vars', '_ci_path', '_ci_return') as $_ci_val) {
$$_ci_val = (!isset($_ci_data[$_ci_val])) ? FALSE : $_ci_data[$_ci_val];
}
$file_exists = FALSE;
$_ci_ext = '.html';
// Set the path to the requested file
if ($_ci_path != '') {
$_ci_x = explode('/', $_ci_path);
$_ci_file = end($_ci_x) . $_ci_ext;
} else {
//可以注释掉下面这一行,因为我们已经可以通过路由来自动加载视图
//$_ci_ext = pathinfo($_ci_view, PATHINFO_EXTENSION);//获取视图文件的后缀名,默认是不传递后缀名的
//拼接视图路径
//加载配置,以方便获取mca(m:模块,c:控制器,a:action)的值
$this->config = &load_class('Config', 'core');
$directory_trigger = $this->config->item('directory_trigger');
$controller_trigger = $this->config->item('controller_trigger');
$function_trigger = $this->config->item('function_trigger');
//用户没有配置伪静态的情况下,使用pathinfo
$urlinfo = explode('/', $_SERVER['REQUEST_URI']);
$urlinfo['module'] = @$urlinfo[1] ? $urlinfo[1] : 'home';
$urlinfo['controller'] = @$urlinfo[2] ? $urlinfo[2] : 'index';
$urlinfo['action'] = @$urlinfo[3] ? $urlinfo[3] : 'index';
$m = isset($_GET[$directory_trigger]) && $_GET[$directory_trigger]!='' ? $_GET[$directory_trigger] : $urlinfo['module'];
$c =isset($_GET[$controller_trigger]) && $_GET[$controller_trigger]!='' ? $_GET[$controller_trigger] : $urlinfo['controller'];
$a = isset($_GET[$function_trigger]) && $_GET[$function_trigger] !=''? $_GET[$function_trigger] : $urlinfo['action'];
//特殊处理common/header(包含公共头部/底部)的情况
$slasharr = explode('/', $_ci_view);
if (count($slasharr) > 1) {
$_ci_file = $m . '/' . $slasharr['0'].'/' .$slasharr['1'] . $_ci_ext;
} else {
//默认的视图名称(不包含后缀名)
$view_name = $_ci_view == '' ? $a : $_ci_view; //如果没有传视图的名称,默认使用action的名称
$_ci_file = $m . '/' . $c . '/' . $view_name . $_ci_ext;
}
foreach ($this->_ci_view_paths as $view_file => $cascade) {
if (file_exists($view_file . $_ci_file)) {
$_ci_path = $view_file . $_ci_file;
$file_exists = TRUE;
break;
}
if (!$cascade) {
break;
}
}
}
if (!$file_exists && !file_exists($_ci_path)) {
show_error('Unable to load the requested file: ' . $_ci_file);
}
// This allows anything loaded using $this->load (views, files, etc.)
// to become accessible from within the Controller and Model functions.
$_ci_CI = & get_instance();
foreach (get_object_vars($_ci_CI) as $_ci_key => $_ci_var) {
if (!isset($this->$_ci_key)) {
$this->$_ci_key = & $_ci_CI->$_ci_key;
}
}
/*
* Extract and cache variables
*
* You can either set variables using the dedicated $this->load_vars()
* function or via the second parameter of this function. We'll merge
* the two types and cache them so that views that are embedded within
* other views can have access to these variables.
*/
if (is_array($_ci_vars)) {
$this->_ci_cached_vars = array_merge($this->_ci_cached_vars, $_ci_vars);
}
extract($this->_ci_cached_vars);
/*
* Buffer the output
*
* We buffer the output for two reasons:
* 1. Speed. You get a significant speed boost.
* 2. So that the final rendered template can be
* post-processed by the output class. Why do we
* need post processing? For one thing, in order to
* show the elapsed page load time. Unless we
* can intercept the content right before it's sent to
* the browser and then stop the timer it won't be accurate.
*/
ob_start();
// If the PHP installation does not support short tags we'll
// do a little string replacement, changing the short tags
// to standard PHP echo statements.
if ((bool) @ini_get('short_open_tag') === FALSE AND config_item('rewrite_short_tags') == TRUE) {
echo eval('?>' . preg_replace("/;*\s*\?>/", "; ?>", str_replace('=', '
} else {
include($_ci_path); // include() vs include_once() allows for multiple views with the same name
}
log_message('debug', 'File loaded: ' . $_ci_path);
// Return the file data if requested
if ($_ci_return === TRUE) {
$buffer = ob_get_contents();
@ob_end_clean();
return $buffer;
}
/*
* Flush the buffer... or buff the flusher?
*
* In order to permit views to be nested within
* other views, we need to flush the content back out whenever
* we are beyond the first level of output buffering so that
* it can be seen and included properly by the first included
* template and any subsequent ones. Oy!
*
*/
if (ob_get_level() > $this->_ci_ob_level + 1) {
ob_end_flush();
} else {
$_ci_CI->output->append_output(ob_get_contents());
@ob_end_clean();
}
}