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<?php $x = [ '"\"', '001', 'nulll', '""' ]; foreach ($x as $y) { var_dump([json_decode($y), json_last_error()]); }
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [0]=> NULL [1]=> int(3) } array(2) { [0]=> NULL [1]=> int(4) } array(2) { [0]=> NULL [1]=> int(4) } array(2) { [0]=> string(0) "" [1]=> int(0) }

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