Change or translate text strings for PMPro Multiple Memberships Per User.

gettext-multiple-memberships-per-user.php

<?php
/**
 * Change or translate text strings for PMPro Multiple Memberships Per User.
 *
 * This recipe assumes and requires that both PMPro core and PMPro Multiple Memberships Per User are active.
 *
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 *
 * @param  string $output_text     this represents the end result
 * @param  string $input_text      what is written in the code that we want to change
 * @param  string $domain          text-domain of the plugin/theme that contains the code
 *
 * @return string                  the result of the text transformation
 */
function my_gettext_pmpro_mmpu( $output_text, $input_text, $domain ) {

	// Is PMPro and MMPU active?
	if ( ! defined( 'PMPRO_VERSION' ) || ! defined( 'PMPROMMPU_VER' ) ) {
		return $output_text;
	}

	// Let's see if current or deprecated text domains are available.
	if ( 'pmpro-multiple-memberships-per-user' === $domain || 'paid-memberships-pro' === $domain || 'pmprommpu' === $domain || 'pmpro' === $domain ) {

		// Find and replace strings with translation strings
		switch ( $input_text ) {
			case 'You have selected the following level':
				$output_text = 'Your translation string here';
				break;
			case 'You have selected the following levels':
				$output_text = 'Your translation string here';
				break;
			case 'Do you have a discount code?':
				$output_text = 'Your translation string here';
				break;
			case 'You can only choose one level from this group.':
				$output_text = 'change me';
				break;		
			case 'You can choose multiple levels from this group.':
				$output_text = 'change me';
				break;		
		}
	}

	return $output_text;
}
add_filter( 'gettext', 'my_gettext_pmpro_mmpu', 10, 3 );

// Support _n calls.
function my_ngettext_pmpro_mmpu( $output_text, $single, $plural, $number, $domain ) {
	if ( 1 === $number ) {
		return my_gettext_pmpro_mmpu( $output_text, $single, $domain );
	} else {
		return my_gettext_pmpro_mmpu( $output_text, $plural, $domain );
	}
}
add_filter( 'ngettext', 'my_ngettext_pmpro_mmpu', 10, 5 );