Installing and Using Custom Chinese Validation Messages in Laravel

First, install the validation component via Composer:

composer require illuminate/validation

Create a Chinese language file lang/zh_cn/validation.php that returns an array of translation strings for each validation rule, following the structure used by Laravel.

<?php
return [
    // Validation Language Lines
    'accepted' => ':attribute必须接受',
    'active_url' => ':attribute必须是一个合法的 URL',
    // ... (other rules) ...
    'attributes' => [
        // 'name' => '名字',
    ],
];

Wrap the validator in a custom handler to load the Chinese translations:

namespace App\handlers;

class Validator extends \Illuminate\Validation\Factory
{
    /**
     * Create an instance of the validator factory with Chinese locale.
     * @return \Illuminate\Validation\Factory
     */
    public static function getInstance()
    {
        static $validator = null;
        if ($validator === null) {
            $translation_path = __DIR__ . '/../lang';
            $translation_locale = 'zh_cn';
            $loader = new \Illuminate\Translation\FileLoader(new \Illuminate\Filesystem\Filesystem, $translation_path);
            $translator = new \Illuminate\Translation\Translator($loader, $translation_locale);
            $validator = new \Illuminate\Validation\Factory($translator);
        }
        return $validator;
    }
}

Usage examples:

Direct validation

$data['title']   = '123';
$data['content'] = '123';
$validator = Validator::getInstance()->make($data, [
    'title'   => 'required|min:10',
    'content' => 'required|min:10',
]);

Custom messages and attribute names

$rules = [
    'title'   => 'required|min:10',
    'content' => 'required|min:10',
];
$messages = [
    'title.required' => ':title字段必须',
];
$attributes = [
    'title'   => '标题',
    'content' => '内容',
];
$validator = Validator::getInstance()->make($data, $rules, $messages, $attributes);

Print validation errors when they occur:

if ($validator->fails()) {
    print_r($validator->errors()->all());
}

For a full list of validation rules, refer to the official Laravel Validator documentation.