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<?php $key = 12345; $email = "somto@gmail.com"; $keyArr = array(12345 => array("somto@gmail.com", "james@yahoo.com",), 54321 => array("munz@gmail.com",)); $errors = []; if (!array_key_exists($key, $keyArr) || !in_array($email, $keyArr[$key])) { $errors['key'] = "Invalid email or key!"; } var_dump($errors);

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