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<?php $string = 'application/vnd.github.full+json'; $pattern = '#(?P<maintype>[a-z].*)/(?P<fullsubtype>(?P<subtype>[a-z0-9.-]*)([+](?P<submediatype>[a-z]*)))?#i'; preg_match($pattern, $string, $matches); var_dump($matches);
Output for git.master, git.master_jit, rfc.property-hooks
array(10) { [0]=> string(32) "application/vnd.github.full+json" ["maintype"]=> string(11) "application" [1]=> string(11) "application" ["fullsubtype"]=> string(20) "vnd.github.full+json" [2]=> string(20) "vnd.github.full+json" ["subtype"]=> string(15) "vnd.github.full" [3]=> string(15) "vnd.github.full" [4]=> string(5) "+json" ["submediatype"]=> string(4) "json" [5]=> string(4) "json" }

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