https://shop.oracle.com/apex/f?p=DSTORE:6:13637619757619:::6:P6_LPI,P6_PROD_HIER_ID:128091503081940436170706,128091502158410436049873打开链接，登录账号，F12，添加代码<a class="button button--primary button--icon-left button--mw" href="javascript:S
Oracle Linux 8 安装libyamlsudo dnf install --enablerepo=ol8_codeready_builder libyaml-devel#安装php的扩展开发yum install php-devel php-pear
#安装LibYAML
参考方式：
https://pyyaml.org/wiki/LibYAMLwget
tar -xvf ya