验证字段：required_if URL在Laravel中包含参数

假设您正在使用Form requsts，则可以简单地使用PHP条件。

public function rules()
{
    $rules = []; // here you put some rules

    // here you check condition and add some rule when it's true
    if (str_contains($this->input('url'), 'something')) {
       $rules['some_other_field'] = 'required';

    }

    return $rules;
}