我的项目中的SQL查询错误，错误号：1064您的SQL语法有错误[重复]

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$sql = "INSERT INTO ci_properties (`unique_name`,`title`,`description`,`pfor`,`ptype`,`pcity`,`plocation`,`ptown`,`paddress`,`pbedroom`,
 `pbathroom`,`pbalcony`,`pfloorno`,`ptotalfloor`,`pfurnished`,`pprefer`,`user_id`,`user_type`,`pmedia_id`,`status`,`update_date`,`date`)
 VALUES(`$unique_name`,`$title`,`$description`,`$pfor`,`$ptype`,`$pcity`,`$plocation`,`$ptown`,`$paddress`,`$pbedroom`,`$pbathroom`,`$pbalcony`,`$pfloorno`,`$ptotalfloor`,`$pfurnished`,`$pprefer`,`$user_id`,`$user_type`,`$pmedia_id`,`$status`,CURDATE(),now())";*/

Error Number: 1064
You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '1' at line 1
1
Filename: D:/gittimedia/htdocs/codeigniter/system/database/DB_driver.php

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