php54w cannot be found in the yum source

rpm -Uvh http://repo.webtatic.com/yum/…

My version is php5.4, centos6.7, but after updating the yum source, I still cannot find php54w-devel. Where is the available yum source?
Or do you need to yum install php54w after downloading the yum source, and then execute php54w-devel?

webtatic no longer supports the php5.4 extension package. . . .
On my other server, yum list | grep php54, I found php54w-devel

How do I find this? Where is the rpm package of php54w-devel?
Cannot be found using find / -name php54w-devel*