Gravity Forms: Modify Philippine Peso currency to display ₱ symbol instead of PHP text.

gf-mcg-php-symbol.php

<?php
/**
 * Modify Philippine Peso currency to display ₱ symbol instead of PHP text.
 * 
 * @param array $currencies The current currencies registered in Gravity Forms.
 * @return array List of currencies with modified PHP currency.
 */
function modify_php_currency_symbol( $currencies ) {
	$currencies['PHP'] = array(
		'name'               => 'Philippine Peso',
		'symbol_left'        => '₱',
		'symbol_right'       => '',
		'symbol_padding'     => '',
		'thousand_separator' => ',',
		'decimal_separator'  => '.',
		'decimals'           => 2,
		'code'               => 'PHP',
	);

	return $currencies;
}
add_filter( 'gform_currencies', 'modify_php_currency_symbol' );