Add Currency

/** 

 * Add a new currency.

 *

 * @param  string[] $currencies The list of registered currencies.

 * @return string[]

 */ 

function ed_charitable_add_currency( $currencies ) {

    /** 

     * We're adding the Armenian Dram currency (AMD).

     *

     * Note that the three-letter currency code is on the left as

     * the 'key' of the currency. This is important as it is what

     * will be sent to payment gateways.

     */

    $currencies['AMD'] = sprintf( __( 'Armenian Dram (%s)', 'charitable' ), charitable_get_currency_helper()->get_currency_symbol( 'AMD' ) );

    return $currencies;

}

add_filter( 'charitable_currencies', 'ed_charitable_add_currency' );

/**

 * Set a symbol for the currency.

 *

 * @param  string $symbol   The currency symbol.

 * @param  string $currency The currency code.

 * @return string

 */

function ed_charitable_set_currency_symbol( $symbol, $currency ) {

    /**

     * The currency's symbol should be provided as a HTML

     * string, including HTML character codes like the below.

     *

     * Note that not all browsers/fonts support all HTML

     * character codes, so if you want to use a particular

     * currency code on your website, be sure to use a font

     * that supports that character.

     */

    if ( 'AMD' == $currency ) {

        $symbol = '֏';

    }

    return $symbol;

}

add_filter( 'charitable_currency_symbol', 'ed_charitable_set_currency_symbol', 10, 2 );