diff --git a/send-wp-mail.php b/send-wp-mail.php
index 86c8c5a..10b3ba8 100644
--- a/send-wp-mail.php
+++ b/send-wp-mail.php
@@ -167,7 +167,7 @@ function swpm_plugin_main() {
 							</tr>
 							<tr>
 								<th scope=”row”><label for="swpm-recipient-emails">To:</label></th>
-								<td><input type="email" multiple id="swpm-recipient-emails" name="email_to" value="<?php echo esc_attr( swpm_plugin_issetor($email_to) ); ?>" required><div class="note"><?php _e( 'To send to multiple recipients, enter each email address separated by a comma or choose from the user list below.', 'swpm' ); ?></div>
+								<td><input type="email" multiple id="swpm-recipient-emails" name="email_to" value="<?php echo esc_attr( $email_to ?? '' ); ?>" required><div class="note"><?php _e( 'To send to multiple recipients, enter each email address separated by a comma or choose from the user list below.', 'swpm' ); ?></div>
 								<select id="swpm-user-list">
 									<option value="">-- <?php _e( 'user list', 'swpm' ); ?> --</option>
 									<?php 
@@ -200,14 +200,14 @@ function swpm_plugin_main() {
 							</tr>
 							<tr>
 								<th scope=”row”><label for="swpm-subject">Subject:</label></th>
-								<td><input type="text" id="swpm-subject" name="email_subject" value="<?php echo esc_attr( swpm_plugin_issetor($email_subject) );?>" required></td>
+								<td><input type="text" id="swpm-subject" name="email_subject" value="<?php echo esc_attr( $email_subject ?? '' );?>" required></td>
 							</tr>
 							<tr>
 								<th scope=”row”><label for="email_body">Message:</label></th>
 								<td align="left">
 									<?php 
 									$settings = array( "editor_height" => "200" );
-									wp_editor( swpm_plugin_issetor($email_body), "email_body", $settings ); 
+									wp_editor( $email_body ?? '', "email_body", $settings ); 
 									?>
 								</td>
 							</tr>
@@ -240,16 +240,3 @@ function swpm_plugin_main() {
 	</div>
 <?php
 }
-
-/**
- * Helper function for form values
- *
- * @since 0.9
- *
- * @param string $var Var name to test isset
- *
- * @return string $var value if isset or ''
- */
-function swpm_plugin_issetor(&$var) {
-    return isset($var) ? $var : '';
-}
\ No newline at end of file