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<?php $array = [ '{"asset":[1,2],"person":[1],"passive":[1]} ', '{"asset":[3],"charge":[1],"passive":[2]} ', ]; $array = array_map(function($v) { return json_decode($v, true);}, $array); $merged = array_merge_recursive(...$array); print json_encode($merged);
Output for git.master, git.master_jit, rfc.property-hooks
{"asset":[1,2,3],"person":[1],"passive":[1,2],"charge":[1]}

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