gpnf-comma-delimited-email-list.php: Created a new snippet to get a comma-delimited list of emails from child entries.

Author: spivurno

experimental/gpnf-comma-delimited-email-list.php

@@ -0,0 +1,23 @@
+<?php
+/**
+ * Gravity Perks // Nested Forms // Convert Simple List to Comma-delimited List of Emails
+ * https://gravitywiz.com/documentation/gravity-forms-nested-forms/
+ * 
+ * Requires the All Fields Template plugin: https://gravitywiz.com/gravity-forms-all-fields-template/
+ *
+ * Example usage: {My Nested Form Field:1:filter[2]:listemails}
+ * 
+ *   - where "1" is the ID of yoru Nested Form field.
+ *   - "2" is the ID of the Email field on your child form.
+ *   - and the "listemails" modifier activates this snippet.
+ */
+add_filter( 'gp_template_output_nested-entries-simple-list', function( $markup, $located_template, $load, $args ) {
+	if ( strpos( $args['modifiers'], 'listemails' ) ) {
+		$markup = array();
+		foreach ( $args['items'] as $item ) {
+			$markup[] = strip_tags( $item['value'] );
+		}
+		$markup = implode( ',', $markup );
+	}
+	return $markup;
+}, 10, 4 );