change_text_example.php

<?php

// Add this code below to your PMPro Customizations plugin - http://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/

add_filter( 'gettext', 'change_my_text_example', 20, 3 );
/**
 * @link http://codex.wordpress.org/Plugin_API/Filter_Reference/gettext
 */
function change_my_text_example( $translated_text, $text, $domain ) {  

        switch ( $translated_text ) {

            case 'The price for membership is <strong>%s</strong> now' :

                $translated_text = __( 'The total price is %s today', 'paid-memberships-pro' );
                break;
  
	
		 	case 'You have selected the <strong>%s</strong> membership level.' :

                $translated_text = __( 'You are purchasing the <strong>%s</strong> membership level.', 'paid-memberships-pro' );
                break;
        }

    return $translated_text;
}