Mysql查詢關鍵字附近的內容

SELECT   SUBSTR( `content` , LOCATE('laravel',`content`) -20 , 60 )   from `mysql`   where `content`  like "%laravel%"

SELECT SUBSTR(`job_desc`,LOCATE('laravel',`job_desc`)-20,60) FROM `jobs` WHERE 1 a `job_desc` LIKE "%laravel%" AND `job_desc` LIKE "%yii%"