Laravel 自定义表单验证规则，验证过滤表情文字
1.定义验证规则，在创建文件app\Providers\Traits\ValidatorTrait.php
namespace App\Providers\Traits;
use Illuminate\Support\Facades\Validator;
trait ValidatorTrait
{
public function validatorBoot()
{
// 自定义字符串是否含有 Emoji 表情字符
Validator::extend('filterEmoji', function ($attribute, $value, $parameters, $validator) {
return $this->checkEmoji($value);
});
Validator::replacer('filterEmoji', function ($message, $attribute, $rule, $parameters) {
return $message;
});
}
/**
* 验证字段是否含有Emoje表情符号等.
* @param $str
* @return bool
* @author code.cent123.com
*/
public static function checkEmoji($str)
{
$mbLen = mb_strlen($str);
for ($i = 0; $i < $mbLen; ++$i) {
$mbSubstr = mb_substr($str, $i, 1, 'utf-8');
if (strlen($mbSubstr) >= 4) {
return false;
}
}
return true;
}
}2.在app\Providers\AppServiceProvider.php引入Trait
<?php
namespace App\Providers;
use Illuminate\Support\Facades\Schema;
use Illuminate\Support\ServiceProvider;
use Illuminate\Support\Facades\Validator;
class AppServiceProvider extends ServiceProvider
{
use \App\Providers\Traits\ValidatorTrait;
/**
* Register any application services.
*
* @return void
*/
public function register()
{
Schema::defaultStringLength(191);
}
/**
* Bootstrap any application services.
*
* @return void
*/
public function boot()
{
//扩展验证规则 code.cent123.com
$this->validatorBoot();
}
}3.语言文件resources\lang\zh-CN\validation.php 注意驼峰命名和下划线的转换
'filter_emoji' => ':attribute 含有不支持的字符',
4.测试
$validator = Validator::make($ary_data, [ 'status' => 'required', 'remarks' => 'required|between:5,100|filterEmoji', ], [ 'status.required' => '状态不能为空', ], [ 'remarks' => '审核意见', ]);
