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<?php $arraySession = [ 'sampleA' => ['1', '2', '3'], 'sampleB' => ['1', '2', '3'], ]; $arrayPost = [ 'sampleA' => ['1'], 'sampleB' => ['1','2'], ]; $result = []; foreach ($arraySession as $k => &$row) { $row = array_diff($row, $arrayPost[$k] ?? []); } var_export($result);
Output for git.master_jit, git.master
array ( )

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