Add Password to checkout email for Paid Memberships Pro.

add_password_to_pmpro_checkout_email.php

<?php

/**
 * Add the user's password to the checkout email for PayPal Express.
 * Please be sure to take proper precautions when dealing with user's passwords and sending out emails.
 * This is for demonstrative purposes.
 * Add this code to your PMPro Customizations Plugin - https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */

function add_password_to_pmpro_checkout_email( $body, $email ) {

	if( $email->template == 'checkout_express' ){ //add's password field to certain template (PayPal Express), change template to corresponding template name.

		$password = $_REQUEST['password'];

		if( ! empty( $password ) ) {
			$body .= 'Your password is: ' . $password;
		}

		
	};

	return $body;
}

add_filter( "pmpro_email_body", "add_password_to_pmpro_checkout_email", 10, 2 );