Laravel 过程声明(字符串$attribute,$value):bool必须与illumb\Contracts\Validation\Rule::passes($attribute,$value)兼容
我已经创建了一个自定义验证规则Laravel 过程声明(字符串$attribute,$value):bool必须与illumb\Contracts\Validation\Rule::passes($attribute,$value)兼容,laravel,laravel-5,laravel-5.5,Laravel,Laravel 5,Laravel 5.5,我已经创建了一个自定义验证规则 namespace App\Rules; use Illuminate\Contracts\Validation\Rule; use Exception; class ValidFoo implements Rule { /** * Determine if the validation rule passes. * * @param string $attribute * @param mixed $v
namespace App\Rules;
use Illuminate\Contracts\Validation\Rule;
use Exception;
class ValidFoo implements Rule
{
/**
* Determine if the validation rule passes.
*
* @param string $attribute
* @param mixed $value
* @return bool
*/
public function passes(string $attribute, $value): bool
{
if (!$foo) {
return false;
}
return true;
}
/**
* Get the validation error message.
*
* @return string
*/
public function message(): string
{
return 'The foo you \'ve provided is not valid.';
}
}
然而,当我试图提交表单时,我得到了这个错误
Symfony\Component\Debug\Exception\FatalErrorException (E_UNKNOWN)
Declaration of App\Rules\ValidFoo::passes(string $attribute, $value): bool must be compatible with Illuminate\Contracts\Validation\Rule::passes($attribute, $value)
这是拉威尔的规则界面
namespace Illuminate\Contracts\Validation;
interface Rule
{
/**
* Determine if the validation rule passes.
*
* @param string $attribute
* @param mixed $value
* @return bool
*/
public function passes($attribute, $value);
/**
* Get the validation error message.
*
* @return string
*/
public function message();
}
这是一门批改过的课。发生错误,因为您使用了类型hit,但接口未使用类型提示
namespace App\Rules;
use Illuminate\Contracts\Validation\Rule;
use Exception;
class ValidFoo implements Rule
{
/**
* Determine if the validation rule passes.
*
* @param string $attribute
* @param mixed $value
* @return bool
*/
public function passes($attribute, $value)
{
if (!$foo) {
return false;
}
return true;
}
/**
* Get the validation error message.
*
* @return string
*/
public function message(): string
{
return 'The foo you \'ve provided is not valid.';
}
}