Adding new Currency Local (Example: Naira)

functions.php

<?php // don't include this line in your functions.php, since it already starts with it.

function _si_add_local_for_client( $client_fields = array() ) {
	$client_fields['money_format']['options']['ngn'] = 'Naira';
	return $client_fields;
}
add_filter( 'si_client_adv_form_fields', '_si_add_local_for_client' );

function _si_set_localeconv( $localeconv = array(), $locale = '' ) {
	switch ( $locale ) {
		case 'ngn':
			$localeconv = ngn_local_array();
			break;
	}
	return $localeconv;
};
add_filter( 'si_localeconv', '_si_set_localeconv', 10, 2 );

function ngn_local_array() {
	return array(
		'decimal_point' => '.',
		'thousands_sep' => '',
		'int_curr_symbol' => 'NGN',
		'currency_symbol' => '₦',
		'mon_decimal_point' => '.',
		'mon_thousands_sep' => ',',
		'positive_sign' => '',
		'negative_sign' => '-',
		'int_frac_digits' => 2,
		'frac_digits' => 2,
		'p_cs_precedes' => 1,
		'p_sep_by_space' => 0,
		'n_cs_precedes' => 1,
		'n_sep_by_space' => 0,
		'p_sign_posn' => 1,
		'n_sign_posn' => 1,
		'grouping' => array(),
		'mon_grouping' => array( 3, 3 ),
	);
}

This snippet is a customization for Sprout Invoices. A customizable solution that provides a way for you to get paid via your WordPress site. For more information please don't hesitate to reach out.