首先引入我们需要的Validator类

use Illuminate\Support\Facades\Validator;

举个简单的例子

比如要验证密码的安全性

我们可以这样写代码

public function index (Request $request) {
	$validate = Validator::make($request->all(), [
		'password' => [
			'required',
			'min:8',
			'regex:/^.*(?=.{3,})(?=.*[a-zA-Z])(?=.*[0-9])(?=.*[\d\X])(?=.*[!$#%]).*$/',
		],
	]);

	if ($validate->fails) {
		\Log::info($validate->messages()->toJson());
	}
}

如果像对验证的错误信息进行自定义

可以这样写代码

public function index (Request $request) {
	$validate = Validator::make($request->all(), [
		'password' => [
			'required',
			'min:8',
			'regex:/^.*(?=.{3,})(?=.*[a-zA-Z])(?=.*[0-9])(?=.*[\d\X])(?=.*[!$#%]).*$/',
		],
	], [
		'password.min' => '密码格式长度错误',
		'password.regex' => '密码格式错误',
	]);

	if ($validate->fails) {
		\Log::info($validate->messages()->toJson());
	}
}