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<?php
/**
* Currency Functions
*
* @package Give
* @subpackage Functions
* @copyright Copyright (c) 2017, GiveWP
* @license https://opensource.org/licenses/gpl-license GNU Public License
* @since 1.8.17
*/
/**
* Get the set currency
*
* @since 1.0
* @since 1.8.15 Upgrade function to handle dynamic currency
*
* @param int $donation_or_form_id Donation or Form ID
* @param array|object $args Additional data
*
* @return string The currency code
*/
function give_get_currency( $donation_or_form_id = null, $args = array() ) {
// Get currency from donation
if ( is_numeric( $donation_or_form_id ) && 'give_payment' === get_post_type( $donation_or_form_id ) ) {
$currency = give_get_meta( $donation_or_form_id, '_give_payment_currency', true );
if ( empty( $currency ) ) {
$currency = give_get_option( 'currency', 'USD' );
}
} else {
$currency = give_get_option( 'currency', 'USD' );
}
/**
* Filter the currency on basis of donation, form id, or additional data.
*
* @since 1.0
*/
return apply_filters( 'give_currency', $currency, $donation_or_form_id, $args );
}
/**
* Get the set currency position
*
* @since 1.3.6
*
* @return string The currency code
*/
function give_get_currency_position() {
$currency_pos = give_get_option( 'currency_position', 'before' );
return apply_filters( 'give_currency_position', $currency_pos );
}
/**
* Get Currencies List
*
* @since 1.8.17
*
* @return array $currencies A list of the available currencies
*/
function give_get_currencies_list() {
$currencies = Give_Cache_Setting::get_option( 'currencies' );
/**
* Filter the currencies
* Note: you can register new currency by using this filter
* array(
* 'admin_label' => '', // required
* 'symbol' => '', // required
* 'setting' => '' // required
* ....
* )
*
* @since 1.8.15
*
* @param array $currencies
*/
return (array) apply_filters( 'give_currencies', $currencies );
}
/**
* Get Currencies
*
* @since 1.0
*
* @param string $info Specify currency info
*
* @return array $currencies A list of the available currencies
*/
function give_get_currencies( $info = 'admin_label' ) {
$currencies = give_get_currencies_list();
// Backward compatibility: handle old way of currency registration.
// Backward compatibility: Return desired result.
if ( ! empty( $currencies ) ) {
foreach ( $currencies as $currency_code => $currency_setting ) {
if ( is_string( $currency_setting ) ) {
$currencies[ $currency_code ] = array(
'admin_label' => $currency_setting,
);
}
$currencies[ $currency_code ] = wp_parse_args(
$currencies[ $currency_code ],
array(
'admin_label' => '',
'symbol' => $currency_code,
'setting' => array(),
)
);
}
if ( ! empty( $info ) && is_string( $info ) && 'all' !== $info ) {
$currencies = wp_list_pluck( $currencies, $info );
}
}
return $currencies;
}
/**
* Get all currency symbols
*
* @since 1.8.14
*
* @param bool $decode_currencies
*
* @return array
*/
function give_currency_symbols( $decode_currencies = false ) {
$currencies = give_get_currencies( 'symbol' );
if ( $decode_currencies ) {
array_walk(
$currencies,
function ( &$currency_symbol ) {
$currency_symbol = html_entity_decode( $currency_symbol, ENT_COMPAT, 'UTF-8' );
}
);
}
/**
* Filter the currency symbols
*
* @since 1.8.14
*
* @param array $currencies
*/
return apply_filters( 'give_currency_symbols', $currencies );
}
/**
* Give Currency Symbol
*
* Given a currency determine the symbol to use. If no currency given, site default is used. If no symbol is determine,
* the currency string is returned.
*
* @since 1.0
*
* @param string $currency The currency string.
* @param bool $decode_currency Option to HTML decode the currency symbol.
*
* @return string The symbol to use for the currency
*/
function give_currency_symbol( $currency = '', $decode_currency = false ) {
if ( empty( $currency ) ) {
$currency = give_get_currency();
}
$currencies = give_currency_symbols( $decode_currency );
$symbol = array_key_exists( $currency, $currencies ) ? $currencies[ $currency ] : $currency;
/**
* Filter the currency symbol
*
* @since 1.0
*
* @param string $symbol
* @param string $currency
*/
return apply_filters( 'give_currency_symbol', $symbol, $currency );
}
/**
* Get currency name.
*
* @since 1.8.8
*
* @param string $currency_code
*
* @return string
*/
function give_get_currency_name( $currency_code ) {
$currency_name = '';
$currency_names = give_get_currencies();
if ( $currency_code && array_key_exists( $currency_code, $currency_names ) ) {
$currency_name = explode( '(', $currency_names[ $currency_code ] );
$currency_name = trim( current( $currency_name ) );
}
/**
* Filter the currency name
*
* @since 1.8.8
*
* @param string $currency_name
* @param string $currency_code
*/
return apply_filters( 'give_currency_name', $currency_name, $currency_code );
}
/**
* Formats the currency displayed.
*
* @since 1.0
*
* @param string $price The donation amount.
* @param array $args It accepts 'currency_code', 'decode_currency' and 'form_id'.
*
* @return mixed|string
*/
function give_currency_filter( $price = '', $args = array() ) {
// Get functions arguments.
$func_args = func_get_args();
// Backward compatibility: modify second param to array
if ( isset( $func_args[1] ) && is_string( $func_args[1] ) ) {
$args = array(
'currency_code' => isset( $func_args[1] ) ? $func_args[1] : '',
'decode_currency' => isset( $func_args[2] ) ? $func_args[2] : false,
'form_id' => isset( $func_args[3] ) ? $func_args[3] : '',
);
give_doing_it_wrong( __FUNCTION__, 'Pass second argument as Array.' );
}
// Set default values.
$args = wp_parse_args(
$args,
array(
'currency_code' => '',
'decode_currency' => false,
'form_id' => '',
)
);
if ( empty( $args['currency_code'] ) || ! array_key_exists( (string) $args['currency_code'], give_get_currencies() ) ) {
$args['currency_code'] = give_get_currency( $args['form_id'] );
}
$args['position'] = give_get_option( 'currency_position', 'before' );
$negative = $price < 0;
if ( $negative ) {
// Remove proceeding "-".
$price = substr( $price, 1 );
}
$args['symbol'] = give_currency_symbol( $args['currency_code'], $args['decode_currency'] );
switch ( $args['currency_code'] ) :
case 'GBP':
case 'BRL':
case 'EUR':
case 'USD':
case 'AUD':
case 'CAD':
case 'HKD':
case 'MXN':
case 'NZD':
case 'SGD':
case 'JPY':
case 'THB':
case 'INR':
case 'IDR':
case 'IRR':
case 'TRY':
case 'RUB':
case 'SEK':
case 'PLN':
case 'PHP':
case 'TWD':
case 'MYR':
case 'CZK':
case 'DKK':
case 'HUF':
case 'ILS':
case 'MAD':
case 'KRW':
case 'ZAR':
$formatted = ( 'before' === $args['position'] ? $args['symbol'] . $price : $price . $args['symbol'] );
break;
case 'NOK':
$formatted = ( 'before' === $args['position'] ? $args['symbol'] . ' ' . $price : $price . ' ' . $args['symbol'] );
break;
default:
$formatted = ( 'before' === $args['position'] ? $args['symbol'] . ' ' . $price : $price . ' ' . $args['symbol'] );
break;
endswitch;
/**
* Filter formatted amount
*
* @since 1.8.17
*/
$formatted = apply_filters( 'give_currency_filter', $formatted, $args, $price );
/**
* Filter formatted amount with currency
*
* Filter name depends upon current value of currency and currency position.
* For example :
* if currency is USD and currency position is before then
* filter name will be give_usd_currency_filter_before
*
* and if currency is USD and currency position is after then
* filter name will be give_usd_currency_filter_after
*/
$formatted = apply_filters(
'give_' . strtolower( $args['currency_code'] ) . "_currency_filter_{$args['position']}",
$formatted,
$args['currency_code'],
$price,
$args
);
if ( $negative ) {
// Prepend the minus sign before the currency sign.
$formatted = '-' . $formatted;
}
return $formatted;
}
/**
* This function is used to fetch list of zero based currencies.
*
* @since 2.3.0
*
* @return array
*/
function give_get_zero_based_currencies() {
$zero_based_currencies = array(
'JPY', // Japanese Yen.
'KRW', // South Korean Won.
'CLP', // Chilean peso.
'ISK', // Icelandic króna.
'BIF', // Burundian franc.
'DJF', // Djiboutian franc.
'GNF', // Guinean franc.
'KHR', // Cambodian riel.
'KPW', // North Korean won.
'LAK', // Lao kip.
'LKR', // Sri Lankan rupee.
'MGA', // Malagasy ariary.
'MZN', // Mozambican metical.
'VUV', // Vanuatu vatu.
);
/**
* This filter hook can be used to update the list of zero based currencies.
*
* @since 2.3.0
*/
return apply_filters( 'give_get_zero_based_currencies', $zero_based_currencies );
}
/**
* Zero Decimal based Currency.
*
* @since 1.8.14
* @since 2.2.0 Modified list.
* @see https://github.com/impress-org/give/issues/2191
*
* @param string $currency Currency code
*
* @return bool
*/
function give_is_zero_based_currency( $currency = '' ) {
$zero_based_currency = give_get_zero_based_currencies();
// Set default currency.
if ( empty( $currency ) ) {
$currency = give_get_currency();
}
// Check for Zero Based Currency.
if ( in_array( $currency, $zero_based_currency ) ) {
return true;
}
return false;
}
/**
* Check if currency support right to left direction or not.
*
* @param string $currency
*
* @return bool
*/
function give_is_right_to_left_supported_currency( $currency = '' ) {
$zero_based_currency = apply_filters(
'give_right_to_left_supported_currency',
array(
'IRR',
'RIAL',
'MAD',
'AED',
'BHD',
'KWD',
'OMR',
'SAR',
'TND', // https://en.wikipedia.org/wiki/Tunisian_dinar
'QAR', // https://en.wikipedia.org/wiki/Qatari_riyal
'LYD', // https://en.wikipedia.org/wiki/Libyan_dinar
'LBP', // https://en.wikipedia.org/wiki/Lebanese_pound
'IRT', // https://en.wikipedia.org/wiki/Iranian_toman
'IQD', // https://en.wikipedia.org/wiki/Iraqi_dinar
'DZD', // https://en.wikipedia.org/wiki/Algerian_dinar
'AFN', // https://en.wikipedia.org/wiki/Afghan_afghani
)
);
// Set default currency.
if ( empty( $currency ) ) {
$currency = give_get_currency();
}
// Check for Zero Based Currency.
if ( in_array( $currency, $zero_based_currency ) ) {
return true;
}
return false;
}