Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in D:\xampp\htdocs\tutechan\includes\cls_template.phpon line 300

打开 includes\cls_template.php 文件：CTRL+G 300 来到300行

把

return preg_replace("/{([^\}\{\n]*)}/e", "\$this->select('\\1');", $source);
//替换成如下
return preg_replace_callback("/{([^\}\{\n]*)}/", function($r) { return $this->select($r[1]); }, $source);

好了清楚缓存刷新一下