How does tp query data based on the passed parameters?

For example, a search form searches for the corresponding name under the name field based on the id value entered by the user. How should this be queried? I will only write this little bit. I don’t know how to pass the value in tp. How to pass the value and how to receive it?

<code>        $qq->field('name');
        $info=$qq->select();
        $this->assign('info',$info);
        $this->display();</code>

Reply content:

For example, a search form searches for the corresponding name under the name field based on the id value entered by the user. How should this be queried? I will only write this little bit. I don’t know how to pass the value in tp. How to pass the value and how to receive it?

<code>        $qq->field('name');
        $info=$qq->select();
        $this->assign('info',$info);
        $this->display();</code>

html

<code><form action="{:U('Index/search')}" method="post">
    <input type="text" name="name" />
    <button type="submit">Submit</button>
</form></code>

php

<code>
public function search(){
    $name=I("post.name");
    $info=M("qq")->where('name like %'.$name.'%')->select();
    var_dump($info);
}
</code>

That’s it, tp’s documentation is still very easy to understand.

$where['id']=123;
$info=$qq->where($where)->find();

For details, please refer to the manual:
http://document.thinkphp.cn/manual_3_2.html

Form submission, direct GET, POST reception, or I method
See the document
http://document.thinkphp.cn/manual_3_2.html#input_var