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PSR-12 was recently accepted and replaces PSR-2, which is now deprecated. There aren't many differences between the two, since PSR-12 is an extension of PSR-2. Changes to the
src
andtests
folders were done automatically byphpcbf
and I manually changed the references to PSR-2 inCONTRIBUTING.md
andMakefile
.