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我把ci的loader函数改了下大神帮我看看?

时间：2021-07-01 10:21:17 帮助过：28人阅读

<无详细内容>
  1. protected function _ci_load($_ci_data) {
  2. // Set the default data variables
  3. foreach (array('_ci_view', '_ci_vars', '_ci_path', '_ci_return') as $_ci_val) {
  4. $$_ci_val = (!isset($_ci_data[$_ci_val])) ? FALSE : $_ci_data[$_ci_val];
  5. }
  8. $file_exists = FALSE;
  9. $_ci_ext = '.html';
  10. // Set the path to the requested file
  11. if ($_ci_path != '') {
  12. $_ci_x = explode('/', $_ci_path);
  13. $_ci_file = end($_ci_x) . $_ci_ext;
  14. } else {
  15. //可以注释掉下面这一行,因为我们已经可以通过路由来自动加载视图
  16. //$_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
  17. //拼接视图路径
  18. //加载配置,以方便获取mca(m:模块,c:控制器,a:action)的值
  19. $this->config = &load_class('Config', 'core');
  20. $directory_trigger = $this->config->item('directory_trigger');
  21. $controller_trigger = $this->config->item('controller_trigger');
  22. $function_trigger = $this->config->item('function_trigger');
  24. //用户没有配置伪静态的情况下,使用pathinfo
  25. $urlinfo = explode('/', $_SERVER['REQUEST_URI']);
  26. $urlinfo['module'] = @$urlinfo[1] ? $urlinfo[1] : 'home';
  27. $urlinfo['controller'] = @$urlinfo[2] ? $urlinfo[2] : 'index';
  28. $urlinfo['action'] = @$urlinfo[3] ? $urlinfo[3] : 'index';
  31. $m = isset($_GET[$directory_trigger]) && $_GET[$directory_trigger]!='' ? $_GET[$directory_trigger] : $urlinfo['module'];
  32. $c =isset($_GET[$controller_trigger]) && $_GET[$controller_trigger]!='' ? $_GET[$controller_trigger] : $urlinfo['controller'];
  33. $a = isset($_GET[$function_trigger]) && $_GET[$function_trigger] !=''? $_GET[$function_trigger] : $urlinfo['action'];
  34. //特殊处理common/header(包含公共头部/底部)的情况
  35. $slasharr = explode('/', $_ci_view);
  36. if (count($slasharr) > 1) {
  37. $_ci_file = $m . '/' . $slasharr['0'].'/' .$slasharr['1'] . $_ci_ext;
  38. } else {
  40. //默认的视图名称(不包含后缀名)
  41. $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
  42. $_ci_file = $m . '/' . $c . '/' . $view_name . $_ci_ext;
  43. }
  44. foreach ($this->_ci_view_paths as $view_file => $cascade) {
  45. if (file_exists($view_file . $_ci_file)) {
  46. $_ci_path = $view_file . $_ci_file;
  47. $file_exists = TRUE;
  48. break;
  49. }
  51. if (!$cascade) {
  52. break;
  53. }
  54. }
  55. }
  57. if (!$file_exists && !file_exists($_ci_path)) {
  58. show_error('Unable to load the requested file: ' . $_ci_file);
  59. }
  61. // This allows anything loaded using $this->load (views, files, etc.)
  62. // to become accessible from within the Controller and Model functions.
  64. $_ci_CI = & get_instance();
  65. foreach (get_object_vars($_ci_CI) as $_ci_key => $_ci_var) {
  66. if (!isset($this->$_ci_key)) {
  67. $this->$_ci_key = & $_ci_CI->$_ci_key;
  68. }
  69. }
  71. /*
  72. * Extract and cache variables
  73. *
  74. * You can either set variables using the dedicated $this->load_vars()
  75. * function or via the second parameter of this function. We'll merge
  76. * the two types and cache them so that views that are embedded within
  77. * other views can have access to these variables.
  78. */
  79. if (is_array($_ci_vars)) {
  80. $this->_ci_cached_vars = array_merge($this->_ci_cached_vars, $_ci_vars);
  81. }
  82. extract($this->_ci_cached_vars);
  84. /*
  85. * Buffer the output
  86. *
  87. * We buffer the output for two reasons:
  88. * 1. Speed. You get a significant speed boost.
  89. * 2. So that the final rendered template can be
  90. * post-processed by the output class. Why do we
  91. * need post processing? For one thing, in order to
  92. * show the elapsed page load time. Unless we
  93. * can intercept the content right before it's sent to
  94. * the browser and then stop the timer it won't be accurate.
  95. */
  96. ob_start();
  98. // If the PHP installation does not support short tags we'll
  99. // do a little string replacement, changing the short tags
  100. // to standard PHP echo statements.
  102. if ((bool) @ini_get('short_open_tag') === FALSE AND config_item('rewrite_short_tags') == TRUE) {
  103. echo eval('?>' . preg_replace("/;*\s*\?>/", "; ?>", str_replace(' } else {
  104. include($_ci_path); // include() vs include_once() allows for multiple views with the same name
  105. }
  107. log_message('debug', 'File loaded: ' . $_ci_path);
  109. // Return the file data if requested
  110. if ($_ci_return === TRUE) {
  111. $buffer = ob_get_contents();
  112. @ob_end_clean();
  113. return $buffer;
  114. }
  116. /*
  117. * Flush the buffer... or buff the flusher?
  118. *
  119. * In order to permit views to be nested within
  120. * other views, we need to flush the content back out whenever
  121. * we are beyond the first level of output buffering so that
  122. * it can be seen and included properly by the first included
  123. * template and any subsequent ones. Oy!
  124. *
  125. */
  126. if (ob_get_level() > $this->_ci_ob_level + 1) {
  127. ob_end_flush();
  128. } else {
  129. $_ci_CI->output->append_output(ob_get_contents());
  130. @ob_end_clean();
  131. }
  132. }

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