diff --git a/js/qsm-admin.js b/js/qsm-admin.js
index ce913e10..2cd08aab 100644
--- a/js/qsm-admin.js
+++ b/js/qsm-admin.js
@@ -2246,9 +2246,11 @@ var qsm_link_button;
 
                     $('.import-button, .link-question').removeClass('disable_import');
                     QSMQuestion.countTotal();
-                    import_button ? import_button.html('').html(qsm_admin_messages.add_question) : "";
+                    if(import_button){
+                        import_button.html(qsm_admin_messages.add_question);
+                    }
                     if(qsm_link_button) {
-                        qsm_link_button.html('').html(qsm_admin_messages.link_question);
+                        qsm_link_button.html(qsm_admin_messages.link_question);
                     }
                     if(import_button){
                         import_button.attr("onclick", "return confirm('" + qsm_admin_messages.confirm_message + " " + qsm_admin_messages.import_question_again + "');");
diff --git a/php/admin/options-page-questions-tab.php b/php/admin/options-page-questions-tab.php
index b13b42b0..5139748c 100644
--- a/php/admin/options-page-questions-tab.php
+++ b/php/admin/options-page-questions-tab.php
@@ -940,7 +940,7 @@ function qsm_process_unlink_question_from_list_by_question_id( $question_id ) {
 		$updated_linked_list = implode(',', array_filter($current_links));
 		$linked_ids = explode(',', $updated_linked_list);
 		foreach ( $linked_ids as $linked_id ) {
-			$result = $wpdb->update(
+			$wpdb->update(
 				$wpdb->prefix . 'mlw_questions',
 				array( 'linked_question' => $updated_linked_list ),
 				array( 'question_id' => intval($linked_id) ),
@@ -1248,7 +1248,7 @@ function qsm_bulk_delete_question_from_database() {
 		$update_qpages_after_delete = array();
 		$dependent_question_ids = qsm_get_unique_linked_question_ids_to_remove($question_id);
 		if ( ! empty($dependent_question_ids) ) {
-			$dependent_question_ids = array_diff($dependent_question_ids, [ $base_question_id ] );
+			$dependent_question_ids = array_diff($dependent_question_ids, [ $base_question_ids ] );
 			$update_qpages_after_delete = qsm_process_to_update_qpages_after_unlink($dependent_question_ids);
 		}
 		$question_id = array_merge($dependent_question_ids, $question_id);
@@ -1299,18 +1299,16 @@ function qsm_process_to_update_qpages_after_unlink( $dependent_question_ids ) {
 		global $wpdb, $mlwQuizMasterNext; 
 		$quiz_results = $wpdb->get_results( "SELECT `quiz_id`, `question_id` FROM `{$wpdb->prefix}mlw_questions` WHERE `question_id` IN (" .$comma_seprated_ids. ")" );
 		if ( ! empty($quiz_results) ) {
-			foreach ( $quiz_results as $key => $single_quiz ) {
+			foreach ( $quiz_results as $single_quiz ) {
 				$quiz_id         = $single_quiz->quiz_id;
 				$mlwQuizMasterNext->pluginHelper->prepare_quiz( $quiz_id );
 				$pages                  = $mlwQuizMasterNext->pluginHelper->get_quiz_setting( 'pages', array() );
 				$clone_qpages = $qpages = $mlwQuizMasterNext->pluginHelper->get_quiz_setting( 'qpages', array() );
 				if ( ! empty($clone_qpages) ) {
 					foreach ( $clone_qpages as $clonekey => $clonevalue ) {
-						if ( ! empty($clonevalue['questions']) ) {
-							if ( in_array($single_quiz->question_id, $clonevalue['questions']) ) {
-								$clone_qpages[ $clonekey ]['questions'] = array_diff($clonevalue['questions'], [ $single_quiz->question_id ]);
-								$pages[ $clonekey ] = array_diff($pages[ $clonekey ], [ $single_quiz->question_id ]);
-							}
+						if ( ! empty($clonevalue['questions']) && in_array($single_quiz->question_id, $clonevalue['questions']) ) {
+							$clone_qpages[ $clonekey ]['questions'] = array_diff($clonevalue['questions'], [ $single_quiz->question_id ]);
+							$pages[ $clonekey ] = array_diff($pages[ $clonekey ], [ $single_quiz->question_id ]);
 						}
 					}
 					$qpages = $clone_qpages;
diff --git a/php/classes/class-qsm-questions.php b/php/classes/class-qsm-questions.php
index 18313ee1..a0cabf38 100644
--- a/php/classes/class-qsm-questions.php
+++ b/php/classes/class-qsm-questions.php
@@ -366,7 +366,6 @@ private static function create_save_question( $data, $answers, $settings, $is_cr
 		$quiz_questions_array = array();
 		$quiz_questions_array[ intval( $data['quiz_id'] ) ] = $question_id;
 		$linked_questions_array[] = $question_id;
-		$imploded_question_ids = $question_id;
 		if ( isset($linked_question) && "" != $linked_question ) {
 			$expolded_question_array = explode(',', $linked_question);
 			$linked_questions_array = array_merge($expolded_question_array, $linked_questions_array);
@@ -383,7 +382,7 @@ private static function create_save_question( $data, $answers, $settings, $is_cr
 		$question_terms_table = $wpdb->prefix . 'mlw_question_terms';
 		foreach ( $quiz_questions_array as $quiz_id => $question_id_loop ) {
 			$values['quiz_id'] = intval( $quiz_id );
-			$results     = $wpdb->update(
+			$wpdb->update(
 				$wpdb->prefix . 'mlw_questions',
 				$values,
 				array( 'question_id' => intval($question_id_loop) ),
diff --git a/php/rest-api.php b/php/rest-api.php
index 5591619c..d59d4d80 100644
--- a/php/rest-api.php
+++ b/php/rest-api.php
@@ -509,7 +509,7 @@ function qsm_rest_get_question( WP_REST_Request $request ) {
 				$quiz_name_by_question = array();
 				if ( ! empty($comma_seprated_ids) ) {
 					$quiz_results = $wpdb->get_results( "SELECT `quiz_id`, `question_id` FROM `{$wpdb->prefix}mlw_questions` WHERE `question_id` IN (" .$comma_seprated_ids. ")" );
-					foreach ( $quiz_results as $key => $value ) {
+					foreach ( $quiz_results as $value ) {
 						$quiz_name_in_loop        = $wpdb->get_row( $wpdb->prepare( "SELECT quiz_name FROM {$wpdb->prefix}mlw_quizzes WHERE quiz_id = %d", $value->quiz_id ), ARRAY_A );
 						$quiz_name_in_loop = isset( $quiz_name_in_loop['quiz_name'] ) ? $quiz_name_in_loop['quiz_name'] : '';
 						$quiz_name_by_question[] = $quiz_name_in_loop;