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<?php $str = 'a\\\\,b,c\\,d'; var_dump(preg_split('/[^\\\\][\\\\],|(,)/', $str));
Output for git.master, git.master_jit, rfc.property-hooks
array(4) { [0]=> string(3) "a\\" [1]=> string(1) "b" [2]=> string(0) "" [3]=> string(1) "d" }

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