Php 在SQL查询中使用LIKE with WHERE的Codeigniter

在codeigniter中，我有这样一个查询：

    $this->db->select('*', false);
    $this->db->from('video as v');
    $this->db->where('v.start_date <=', 'NOW()', false);
    $this->db->like('v.title', $keywords);
    $this->db->or_like('v.title_tw', $keywords);
    $this->db->or_like('v.title_cn', $keywords);
    $query = $this->db->get();
    return $query->result_array();

$sql = SELECT * FROM video as v where v.start_date <= NOW() AND (v.title like ? OR v.title_tw like ? or v.title_cn like ?);
$query = $this->db->query($sql, array($keywords, $keywords, $keywords));

$this->db->select（'*'，false）；
$this->db->from（'video as v'）；
$this->db->where（'v.start\u date您可以这样尝试：

    $this->db->select('*', false);
    $this->db->from('video as v');
    $this->db->where('v.start_date <=', 'NOW()', false);
    $this->db->like('v.title', $keywords);
    $this->db->or_like('v.title_tw', $keywords);
    $this->db->or_like('v.title_cn', $keywords);
    $query = $this->db->get();
    return $query->result_array();

$sql = SELECT * FROM video as v where v.start_date <= NOW() AND (v.title like ? OR v.title_tw like ? or v.title_cn like ?);
$query = $this->db->query($sql, array($keywords, $keywords, $keywords));

$sql=SELECT*FROM video as v其中v.start_date db->query（$sql，array（$keywords，$keywords））；

对于CodeIgniter 3.x：

您可以在查询中使用括号：

    $this->db->select('v.*,t.name,t.name_tw,t.name_cn, t.image_url as profile_pic, COALESCE(b.duration, bt.duration, bc.duration) AS duration, COALESCE(b.thumbnail, bt.thumbnail, bc.thumbnail) as thumbnail', false);
        $this->db->from('video as v');
        $this->db->join('teacher as t', 'v.teacher_id = t.id');
        $this->db->join('video_tag as vt', 'v.id = vt.video_id', 'left');
        $this->db->join('brightcove as b', 'v.video = b.video_id', 'left');
        $this->db->join('brightcove as bt', 'v.video_tw = bt.video_id', 'left');
        $this->db->join('brightcove as bc', 'v.video_cn = bc.video_id', 'left');
        $this->db->where('v.is_delete', false);
        $this->db->where('v.start_date <=', 'NOW()', false);
        $this->db->group_start();
        $this->db->like('v.title', $keywords);
        $this->db->or_like('v.title_tw', $keywords);
        $this->db->or_like('v.title_cn', $keywords);
        $this->db->or_like('vt.tag', $keywords);
        $this->db->group_end();
        $this->db->group_by('v.id');
        $query = $this->db->get();

$this->db->select（'v.*、t.name、t.name\u tw、t.name\u cn、t.image\u url作为配置文件\u pic，COALESCE（b.duration、bt.duration、bc.duration）作为持续时间，COALESCE（b.缩略图、bt.缩略图、bc.缩略图）作为缩略图），false）；
$this->db->from（'video as v'）；
$this->db->join（'teacher as t'，'v.teacher_id=t.id'）；
$this->db->join（'video_标记为vt'，'v.id=vt.video_id'，'left'）；
$this->db->join（'brightcove as b'，'v.video=b.video_id'，'left'）；
$this->db->join（'brightcove as bt'，'v.video_tw=bt.video_id'，'left'）；
$this->db->join（'brightcove as bc'，'v.video\u cn=bc.video\u id'，'left'）；
$this->db->where（'v.is\u delete'，false）；
$this->db->where（'v.start\u date最后，我创建了这样的查询，似乎工作正常：

function search_video($keywords) {
    $this->db->select('v.*,t.name,t.name_tw,t.name_cn, t.image_url as profile_pic, COALESCE(b.duration, bt.duration, bc.duration) AS duration, COALESCE(b.thumbnail, bt.thumbnail, bc.thumbnail) as thumbnail', false);
    $this->db->from('video as v');
    $this->db->join('teacher as t', 'v.teacher_id = t.id');
    $this->db->join('video_tag as vt', 'v.id = vt.video_id', 'left');
    $this->db->join('brightcove as b', 'v.video = b.video_id', 'left');
    $this->db->join('brightcove as bt', 'v.video_tw = bt.video_id', 'left');
    $this->db->join('brightcove as bc', 'v.video_cn = bc.video_id', 'left');
    $this->db->where("(v.is_delete = false AND v.start_date <= NOW()) AND (v.title LIKE '$keywords' OR  v.title_tw LIKE '$keywords' OR v.title_cn LIKE '$keywords' OR vt.tag LIKE '$keywords')");
    $this->db->group_by('v.id');
    $query = $this->db->get();
    return $query->result_array();
}

功能搜索\u视频（$keywords）{
$this->db->选择（'v.*，t.name，t.name\u tw，t.name\u cn，t.image\u url作为配置文件\u图片，合并（b.duration，bt.duration，bc.duration）作为持续时间，合并（b.thumboil，bt.thumboil，bc.thumboil）作为缩略图），false）；
$this->db->from（'video as v'）；
$this->db->join（'teacher as t'，'v.teacher_id=t.id'）；
$this->db->join（'video_标记为vt'，'v.id=vt.video_id'，'left'）；
$this->db->join（'brightcove as b'，'v.video=b.video_id'，'left'）；
$this->db->join（'brightcove as bt'，'v.video_tw=bt.video_id'，'left'）；
$this->db->join（'brightcove as bc'，'v.video\u cn=bc.video\u id'，'left'）；
$this->db->where（“（v.is_delete=false和v.start_date非常感谢您的帮助。问题是实际查询非常复杂，因此使用单行查询可能不是这样simple@user782104-好的，我看到您对实际查询的新编辑。您应该仍然能够使用表示每个
$keywo的
？
参数定义完整的SQL查询rds
输入并使用
db->query（）
方法，因为其他一切都是静态的。可能还是一个选项。谢谢，但发现当前的codeigniter是2.x.x，有解决方法吗？谢谢
$this->db->select('v.*,t.name,t.name_tw,t.name_cn, t.image_url as profile_pic, COALESCE(b.duration, bt.duration, bc.duration) AS duration, COALESCE(b.thumbnail, bt.thumbnail, bc.thumbnail) as thumbnail', false);
    $this->db->from('video as v');
    $this->db->join('teacher as t', 'v.teacher_id = t.id');
    $this->db->join('video_tag as vt', 'v.id = vt.video_id', 'left');
    $this->db->join('brightcove as b', 'v.video = b.video_id', 'left');
    $this->db->join('brightcove as bt', 'v.video_tw = bt.video_id', 'left');
    $this->db->join('brightcove as bc', 'v.video_cn = bc.video_id', 'left');
    $this->db->where('v.is_delete', false);
    $this->db->where('v.start_date <=', 'NOW()', false);
    $this->db->where("( v.title LIKE '%{$keywords}%'", null, FALSE);
    $this->db->or_like('v.title_tw', $keywords);
    $this->db->or_like('v.title_cn', $keywords);
    $this->db->where("OR vt.tag LIKE '%{$keywords}%' )", null, FALSE);
    $this->db->group_by('v.id');

function search_video($keywords) {
    $this->db->select('v.*,t.name,t.name_tw,t.name_cn, t.image_url as profile_pic, COALESCE(b.duration, bt.duration, bc.duration) AS duration, COALESCE(b.thumbnail, bt.thumbnail, bc.thumbnail) as thumbnail', false);
    $this->db->from('video as v');
    $this->db->join('teacher as t', 'v.teacher_id = t.id');
    $this->db->join('video_tag as vt', 'v.id = vt.video_id', 'left');
    $this->db->join('brightcove as b', 'v.video = b.video_id', 'left');
    $this->db->join('brightcove as bt', 'v.video_tw = bt.video_id', 'left');
    $this->db->join('brightcove as bc', 'v.video_cn = bc.video_id', 'left');
    $this->db->where("(v.is_delete = false AND v.start_date <= NOW()) AND (v.title LIKE '$keywords' OR  v.title_tw LIKE '$keywords' OR v.title_cn LIKE '$keywords' OR vt.tag LIKE '$keywords')");
    $this->db->group_by('v.id');
    $query = $this->db->get();
    return $query->result_array();
}