在读者的帮助下，我似乎已经缩小了实现这一目标的步骤.

With a bit of help from the readers I seem to have narrowed down the steps to accomplish this.

1. 下载最新的 YAML DLL 包
2. 解压文件
3. 将 php_yaml.dll 文件移动到 xampp/php/ext 文件夹
4. 在xampp/php中打开你的php.ini并添加extension=php_yaml.dll这一行，保存退出
5. 现在将 yaml.dll 文件从 zip 文件夹内容中移动到 xampp/apache/bin 文件夹中
6. 关闭并重新启动您的 XAMPP 服务器
7. 加载一个php脚本echo phpinfo();
8. 在页面上搜索字符串yaml.如果显示已启用，则您的 YAML 扩展正在运行.

1. Download the latest YAML DLL Package
2. Unzip the files
3. Move the php_yaml.dll file to xampp/php/ext folder
4. Open your php.ini in xampp/php and add the line extension=php_yaml.dll, save and exit
5. Now move the yaml.dll file from the zip folder contents and move it to the xampp/apache/bin folder
6. Close and restart your XAMPP Servers
7. Load a php script echo phpinfo();
8. Search the string yaml on the page. If it says Enabled then your YAML Extension is working.