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WordPress遇到PHP致命错误的解决办法
Solution to WordPress PHP Fatal Error
在进行站点维护WordPress站点的时候发现日志中经常出现一个错误：PHP Fatal error: Uncaught Error: Call to undefined function get_header()，也就是php的致命错误。
When maintaining WordPress sites, we often encounter this error in logs: PHP Fatal error: Uncaught Error: Call to undefined function get_header(), which is a PHP fatal error.
什么是调用未定义函数错误？
What is Call to Undefined Function Error?
这是一个直接针对主题的致命错误，也就是你安装了WordPress主题的话，他们会收到一个指向你的主题目录的URL。
This is a fatal error directly related to themes. When you install WordPress themes, they receive URLs pointing to your theme directory.
检查网站是否受到攻击？
Check if Your Site is Under Attack?
首先，你需要检查你的网站是否有受到攻击。要检查这个错误，请看错误日志。
First, you need to check if your site is under attack. To check this error, please view the error logs.
如何修复调用未定义函数的致命错误？
How to Fix Call to Undefined Function Fatal Error?
解决这种类型的错误的一个最有效和最简单的方法是，如果WordPress不可用，就退出该脚本。
The most effective and simplest solution to this type of error is to exit the script if WordPress is not available.
代码示例/Code Example:
<?php if (!defined('ABSPATH')) exit; get_header(); ?> 进阶保护
Advanced Protection
为了进一步发展，你可以通过限制目录视图来保护重要文件。
For further protection, you can secure important files by restricting directory views.
最后总结
Final Summary
正如你所看到的，这里已经分享了一个简单而有效的方法来防止网页被攻击者/黑客攻击。
As you can see, we've shared a simple yet effective method to prevent attacks from hackers.
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