PHP中直接使用sql語句

SELECT * FROM `tf_user` WHERE (`company_id` = '117' OR `other_company_ids` LIKE '%117,%' OR `other_company_ids` LIKE '%,117,%' OR `other_company_ids` LIKE '%,117%') AND `id` != '37' AND `status` = '2' AND `role` = '2';

標准寫法，關鍵字大寫。
表名，字段名加`。
值加'。

PHP代碼如下：

$sql = "SELECT * FROM `tf_user` WHERE (`company_id` = '".$user_info['company_id']."' OR `other_company_ids` LIKE '%".$user_info['company_id'].",%' OR `other_company_ids` LIKE '%,".$user_info['company_id'].",%' OR `other_company_ids` LIKE '%,".$user_info['company_id']."%') AND `id` != '".$this->user_info['id']."' AND `status` = '2' AND `role` = '2'";
$user_list = $user->query($sql);

原生sql的好處就是能夠更加靈活的查詢數據！也鍛煉sql的能力！
但是一定要寫的細心，不然不容易后期維護。