replace texts with gettext filter

pmpro_get_text.php

<?php
/**
 * replace texts with gettext filter
 *
 * Add this code to your site by following this guide - https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */

 function pmpro_translate_text( $translated_text, $untranslated_text, $domain) {
  	//if the domain dosn't contains  pmpro  return the original text
	if( $domain !== 'paid-memberships-pro' && $domain !== 'pmpro-group-accounts') {
		return $translated_text;
	}

	switch( $untranslated_text  ) {
		case 'Memberships':
			$untranslated_text = 'Sponsorship';
		break;
	}

	return $untranslated_text;

}
add_filter( 'gettext', 'pmpro_translate_text', 4, 10 );