CircleCI: Use offical CircleCI PHP orb and next-gen docker images #520
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Changes
matrix
Notes
Dropped PHP 7.1 testing because of CircleCI-Public/cimg-php#1 (comment)
Yes. Let me know if we need it.
Benchmark
Not much difference actually.
Downloading the docker image, which ranging from 3 to 40 second depends whether the CircleCI instance has the docker layer cached, makes up the most of the build time.
With CircleCI pushing its new docker images forward, I expect the cache hit rate to go up in the coming months.