我有项目需求,其中学生可以申请到的程度,如果有任何学科与学科由机构增加相匹配。 这里是表结构
institute table student table
---------------------------------- -----------------------------------
id | degree | subject_required id | subject_known
1 | MS | maths,electronics,CAD 1 craft,drama
2 BSC chemistry,biology 2 maths
3 arts craft,drama,dancing 3 cad,electronics
这是代码我已经写在那里学会添加度和subject_required
public function add_degree($institute_id){
$data=array(
'id' => $institute_id,
'degree' => $this->input->post('degree'),
'subject_required'=>$this->input->post('subject_required'),
);
return $this->db->insert('institute',$data);
}
这个代码时,学生第一次注册自己写
public function student_register(){
$data=array(
'id' => $institute_id,
'subject_known'=>$this->input->post('subject_known'),
);
return $this->db->insert('student',$data);
}
我如何匹配,如果任何一个主题,然后匹配,其中学生可以申请这一主题要求,本科目按列separed
public function match_subject($id){
$sql='SELECT subject_required FROM institute WHERE id ='.$id;
$query=$this->db->query($sql);
foreach ($query->result() as $row)
{
$subject_required = $row->subject_required;
$subject_required=$this->explode(array(',',' '),$subject_required);
}
}
但林不能够匹配的主题要求。