";
            print_r( $data );
            echo "
";
        }

        /**
         * Function to import the pricing table data using provided table data
         * @param  [type] $table_row  Table data to be imported
         * @return Boolean            Returns true or false based on import of table data
         */
        function appts_import_table_data( $table_row ){
            $table_row = ( array ) $table_row;
            global $wpdb;
            $table_name = $wpdb -> prefix . 'appts_tables_data';
            $name = $table_row[ 'name' ];
            $sid = $table_row[ 'sid' ];
            $table_data = $table_row[ 'table_data' ];
            $created_date = $table_row[ 'created_date' ];
            $last_modified_date = $table_row[ 'last_modified_date' ];

            $row = $wpdb -> get_var( "SELECT count(*) FROM $table_name WHERE sid ='$sid'" );

            if ( $row == '0' && $sid != '' ) {
                $sid = $sid;

                $result = $wpdb -> insert( $table_name, array(
                    'name' => $name,
                    'sid' => $sid,
                    'table_data' => $table_data,
                    'created_date' => $created_date,
                    'last_modified_date' => $last_modified_date
                        )
                );
            } else {
                //sid is empty or already exist so need to generate new one
                $sid = self:: generateRandomString();
                $result = $wpdb -> insert( $table_name, array(
                    'name' => $name,
                    'sid' => $sid,
                    'table_data' => $table_data,
                    'created_date' => $created_date,
                    'last_modified_date' => $last_modified_date
                        )
                );
            }
            return $result;
        }

        /**
         * Function to generate the random string using number and lowercase english alphabets
         * @param  integer $length Length of the random strings to be generated
         * @return mixed           Returns the mixed value (number and lowercase english alphabets) of length 10
         */
        public static function generateRandomString( $length = 10 ){
            return substr( str_shuffle( str_repeat( $x = '0123456789abcdefghijklmnopqrstuvwxyz-_', ceil( $length / strlen( $x ) ) ) ), 1, $length );
        }

        /**
         * Function to generate random number
         * @param  integer $length Length of the random number to be generated
         * @return mixed           Returns the mixed value of number and alphabets
         */
        public static function generateRandomIndex( $length = 10 ){
            $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
            $charactersLength = strlen( $characters );
            $randomString = '';
            for ( $i = 0; $i < $length; $i ++ ) {
                $randomString .= $characters[ rand( 0, $charactersLength - 1 ) ];
            }
            return $randomString;
        }

        /**
         * Function to get the table using table id
         * @param  mixed $sid shortcode id of the table
         * @return array      Returns multidimensional array of the table
         */
        public static function get_table( $sid ){
            global $wpdb;
            $table_name = $wpdb -> prefix . 'appts_tables_data';
            $query = "SELECT * FROM $table_name WHERE sid = '$sid'";
            $row = $wpdb -> get_row( $query );
            $table_data = array();
            if ( ! empty( $row ) ) {
                foreach ( $row as $key => $value ) {
                    if ( $key == 'table_data' ) {
                        $table_data[ $key ] = maybe_unserialize( $value );
                    } else {
                        $table_data[ $key ] = $value;
                    }
                }
            } else {
                echo "
Empty Data received. Please check if you have kept the correct shortcode.
";
            }
            return $table_data;
        }

        /**
         * This is the main shortcode to display the pricing tables to the wordpress frontend
         * @param  array $atts Attributes to display the pricing table in frontend
         * @return html        Outputs the pricing table as per shortcode id
         */
        function appts_pricing_table_shortcode( $atts ){
            global $content;
            ob_start();
            include('inc/frontend/shortcode.php');
            $output = ob_get_clean();
            return $output;
        }

        /**
         * Function to do the preview of the pricing table from backend.
         * @return html returns the html output for table preview
         */
        public function preview_table(){
            if ( isset( $_GET[ 'appts_form_preview' ], $_GET[ 'appts_sid' ] ) && is_user_logged_in() ) {
                include( 'inc/frontend/preview-table.php' );
                exit();
            }
        }

        /**
         * Function to format the price
         * @param  float $price                       get the value of the price float value
         * @param  char $currency_thousand_separator  get the currency thousand separator value
         * @param  char $currency_decimal_separator   get the currency decimal separator value
         * @param  int $currency_decimal_no          get the currency decimal number to be diplayed
         * @return html                              formatted number
         */
        public static function format_price( $price, $currency_thousand_separator, $currency_decimal_separator, $currency_decimal_no ){
            $formatted_number = number_format( $price, $currency_decimal_no, $currency_decimal_separator, $currency_thousand_separator );
            return $formatted_number;
        }

    }

    //end of the class
} // end of the if class exist function

$pricing_table = new APPTS_Class();