安装了wordpress网站程序之后在打开外观-编辑（模版编辑）的时候出现了错误，提示信息如下：

Warning: scandir() has been disabled for security reasons in /home/wwwroot/yourdomain.com/wp-includes/class-wp-theme.php on line 978

Warning: Invalid argument supplied for foreach() in /home/wwwroot/yourdomain.com/wp-includes/class-wp-theme.php on line 981

Warning: scandir() has been disabled for security reasons in /home/wwwroot/yourdomain.com/wp-includes/class-wp-theme.php on line 978

Warning: Invalid argument supplied for foreach() in /home/wwwroot/yourdomain.com/wp-includes/class-wp-theme.php on line 981

在网上找了一下问题答案，原来是PHP禁用了scandir() 函数

解决方法如下：

打开php.ini文件中找到disable_functions 字符串，在其后把 scandir 去掉，重新服务器。