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]) ? $_ci_data[$_ci_val] : FALSE;
}
$file_exists = FALSE;
// Set the path to the requested file
if (is_string($_ci_path) && $_ci_path !== '') {
$_ci_x = explode('/', $_ci_path);
$_ci_file = end($_ci_x);
} else {
$_ci_ext = pathinfo($_ci_view, PATHINFO_EXTENSION);
$_ci_file = $_ci_ext === '' ? $_ci_view . '.php' : $_ci_view;
foreach ($this->_ci_view_paths as $_ci_view_file => $cascade) {
if (file_exists($_ci_view_file . $_ci_file)) {
$_ci_path = $_ci_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 = $this->get_instance();
foreach (get_object_vars($_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)) {
foreach (array_keys($_ci_vars) as $key) {
if (strncmp($key, '_ci_', 4) === 0) {
unset($_ci_vars[$key]);
}
}
$this->_ci_cached_vars = array_merge($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 (!is_php('5.4') && !ini_get('short_open_tag') && config_item('rewrite_short_tags') === TRUE) {
echo eval('?>' . preg_replace('/;*\\s*\\?>/', '; ?>', str_replace('<?=', '<?php echo ', file_get_contents($_ci_path))));
} else {
include $_ci_path;
// include() vs include_once() allows for multiple views with the same name
}
log_message('info', '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();
}
return $this;
}