ccavenue-email-tag.php

<?php

/**
 * Adds a CCAvenue Phone Tag: {ccavenue_phone}
 * This function creates a custom Give email template tag
 *
 * @param array $email_tags List of email tags.
 *
 * @return array
 */

function ccavenue_donation_phone_email_tag( $email_tags ) {

	$new_email_tag = array(
		'tag'         => 'ccavenue_phone',
		'description' => esc_html__( 'This tag outputs the donation phone for donations made with CCAVenue', 'give' ),
		'function'    => 'get_ccavenue_donation_phone',
		'context'     => 'general', // Context can be general, donor, form or donation
	);

	array_push( $email_tags, $new_email_tag );

	return $email_tags;
}
add_filter( 'give_email_tags', 'ccavenue_donation_phone_email_tag' );

function get_ccavenue_donation_phone( $tag_args ) {
	$output       = '';
	$phone_number = give_get_meta( $tag_args['payment_id'], '_give_ccavenue_phone_number', true );
	if ( $phone_number ) {
		$output = $phone_number;
	} else {
		$output = '';
	}
	return $output;
}