php - 如何在php中动态添加多个WHERE子句-6ren

php - 如何在php中动态添加多个WHERE子句

转载作者：行者123 更新时间：2023-11-29 06:26:58

<分区>

我有五个输入字段，即技能、位置、公司、经验和薪水。根据用户要求，我将从数据库中获取值。我的问题是，如何动态使用 where 条件？考虑用户在技能和公司输入字段中输入值，我想从数据库中获取这些值该怎么做？现在我保留了 20 个 if 条件来解决这个问题

public function get_jobonline($skillname,$userid,$location)
{
    $company=$this->input->post('searchcompany');
    $experience=$this->input->post('experience');
    $salary=$this->input->post('salary');
    echo $company;
    if($location==NULL)
    {
        $query=$this->db->query("SELECT j.id AS job_id, j.created_date,j.title, l.city AS location, cm.name AS company_name,
        cm.logo FROM  `jobs` AS j
        LEFT JOIN  `keyword` AS k ON  `k`.`job_id` =  `j`.`id` 
        LEFT JOIN  `keyword_master` AS km ON  `km`.`id` =  `k`.`keyword_id` 
        LEFT JOIN  `location_master` AS l ON  `l`.`id` =  `j`.`location` 
        LEFT JOIN  `company_master` AS cm ON  `cm`.`id` =  `j`.`company_id` 
        WHERE km.name = '$skillname' AND j.uid='$userid'
        ;");
    }
    else
    {
        $query=$this->db->query("SELECT j.id AS job_id, j.created_date,j.title, l.city AS location, cm.name AS company_name,
        cm.logo FROM  `jobs` AS j
        LEFT JOIN  `keyword` AS k ON  `k`.`job_id` =  `j`.`id` 
        LEFT JOIN  `keyword_master` AS km ON  `km`.`id` =  `k`.`keyword_id` 
        LEFT JOIN  `location_master` AS l ON  `l`.`id` =  `j`.`location` 
        LEFT JOIN  `company_master` AS cm ON  `cm`.`id` =  `j`.`company_id` 
        WHERE km.name = '$skillname' AND j.uid='$userid' AND l.city='$location'
        ;");
    }

    // if($company != NULL && )

    return $query->result_array();
}