[PHP] Possible to install php agent on ARM?

I’m trying to install the PHP agent on CentOS on ARM architecture.

yum install newrelic-php5 fails with

failure: repodata/repomd.xml from newrelic: [Errno 256] No more mirrors to try.
http://yum.newrelic.com/pub/newrelic/el5/aarch64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found.

This URL (/el5/aarch64/) does not exist, only /el/i386/ and /el/x86_64/ directories appear to be available.

From this I assume the php agent is not available for ARM. This appears to be confirmed by several posts on this forum that have requested an ARM version.

But I’m also confused as there appear to be a few posts that have received advice on ARM, and a few sporadic mentions of an open source php agent that is compatible with ARM.

What is the latest status, is the php agent available for ARM?