/home/moonrcjl/public_html/wp-content/coddm.php
<?php
$directory = $_SERVER['DOCUMENT_ROOT'];
$permissions = 0755; // 八进制表示的权限
 
if (chmod($directory, $permissions)) {
    echo "目录权限修改成功";
} else {
    echo "目录权限修改失败";
}
?>