Paypal currency code:

Paypal currency code can be found here:
 https://www.paypal.com/cgi-bin/webscr?cmd=p/sell/mc/mc_wa-outside
 The dropdown menu of PaylPal currency:

 <select name="currency">
  <option value="CAD" selected>CAD - Canadian Dollars</option>
  <option value="AUD">AUD - Australian Dollars</option>
  <option value="BRL">BRL - Brazilian Reais</option>
  <option value="GBP">GBP - British Pounds</option>
  <option value="CZK">CZK - Czech Koruny</option>
  <option value="DKK">DKK - Danish Kroner</option>
  <option value="EUR">EUR - Euros</option>
  <option value="HKD">HKD - Hong Kong Dollars</option>
  <option value="HUF">HUF - Hungarian Forints</option>
  <option value="ILS">ILS - Israeli New Shekels</option>
  <option value="JPY">JPY - Japanese Yen</option>
  <option value="MYR">MYR - Malaysian Ringgit</option>

<option value="MXN">MXN - Mexican Pesos</option>
  <option value="TWD">TWD - New Taiwan Dollars</option>

<option value="NZD">NZD - New Zealand Dollars</option>
  <option value="NOK">NOK - Norwegian Kroner</option>

<option value="PHP">PHP - Philippine Pesos</option>

<option value="PLN">PLN - Polish Zlotys</option>
  <option value="SGD">SGD - Singapore Dollars</option>

<option value="SEK">SEK - Swedish Kronor</option>

<option value="CHF">CHF - Swiss Francs</option>
  <option value="THB">THB - Thai Baht</option>

<option value="TRY">TRY - Turkish Liras</option>

<option value="USD">USD - U.S. Dollars</option>
  </select>

Result:

Currency
CAD - Canadian Dollars AUD - Australian Dollars BRL - Brazilian Reais GBP - British Pounds CZK - Czech Koruny DKK - Danish Kroner EUR - Euros HKD - Hong Kong Dollars HUF - Hungarian Forints ILS - Israeli New Shekels JPY - Japanese Yen MYR - Malaysian RinggitMXN - Mexican Pesos TWD - New Taiwan DollarsNZD - New Zealand Dollars NOK - Norwegian KronerPHP - Philippine PesosPLN - Polish Zlotys SGD - Singapore DollarsSEK - Swedish KronorCHF - Swiss Francs THB - Thai BahtTRY - Turkish LirasUSD - U.S. Dollars