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<?php var_dump(array_map(function($c) { var_dump(ord($c), $c); }, str_split(hex2bin("3530343339"))));
Output for git.master, git.master_jit, rfc.property-hooks
int(53) string(1) "5" int(48) string(1) "0" int(52) string(1) "4" int(51) string(1) "3" int(57) string(1) "9" array(5) { [0]=> NULL [1]=> NULL [2]=> NULL [3]=> NULL [4]=> NULL }

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