laravel中validator的使用方法介绍（代码示例）

web 开发过程中经常会需要进行参数验证，laravel 中我们常用 validator 或者 request 这两种方法来进行验证，但是这两种验证都不是很方便进行自定义提示信息，自定义验证规则，所以下面来介绍一种很方便的用法：

 ?phpnamespace App/Http/Validators;use Validator;abstract html' target='_blank'>class AbstractValidator * Validator * @var /Illuminate/Validation/Factory protected $validator; * Validation data key = value array * @var array protected $data = array(); * Validation errors * @var array protected $errors = array(); * Validation rules * @var array protected $rules = array(); * Validation messages * @var array protected $messages = array(); * Validation codes * @var array protected $codes = array(); public function __construct(array $data) $this- data = $data; $this- before(); $this- validator = Validator::make($this- data, $this- rules, $this- messages); $this- after(); * Set data to validate * @return validator public function getValidator() return $this- validator; * Set data to validate * @return $this public function with(array $data) $this- data = $data; $this- before(); $this- validator = $this- validator- make($this- data, $this- rules, $this- messages); $this- after(); return $this; * Validation passes or fails * @return boolean public function passes() if ($this- validator- fails()) { $this- errors = $this- validator- messages(); return false; return true; * Return errors, if any * @return array public function errors() return $this- errors; * Return errors codes, if any * @return array public function getCodes() return $this- codes; * getRules * @return array public function getRules() return $this- rules; * getData * @return array public function getData() return $this- data; * getErrors * @return array public function getErrors() return $this- errors; * getMessages * @return array public function getMessages() return $this- messages; * setRule * @param string $key * @param string $value * @return $this public function setRule($key, $value) $this- rules[$key] = $value; return $this; * emptyRules * @return $this public function emptyRules() $this- rules = array(); return $this; * sometimes * @param string $attribute * @param string|array $rules * @param callable $callback * @return $this public function sometimes($attribute, $rules, callable $callback) $this- validator- sometimes($attribute, $rules, $callback); return $this; * resolver * @param Closure $resolver * @return $this public function resolver(Closure $resolver) Validator::resolver($resolver); return $this; * replacer * @param Closure $resolver * @return $this public function replacer($replace, Closure $resolver) Validator::replacer($replace, $resolver); return $this; * extendImplicit * @param Closure $resolver * @return $this public function extendImplicit($extendImplicit, Closure $resolver) Validator::extendImplicit($extendImplicit, $resolver); return $this; * extend * @param string $rule * @param /Closure|string $extension * @param string $message * @return $this public function extend($rule, $extension, $message = null) Validator::extend($rule, $extension, $message); return $this; * before (extend(),resolver()) * @return $this public function before() * after(sometimes()) * @return $this public function after()}

 ?phpnamespace App/Http/Middleware;use Closure;use /Illuminate/Http/Request;class ValidateAdminMiddleware * This namespace is applied to the controller routes in your routes file. * In addition, it is set as the URL generator s root namespace. * @var string protected $namespace = App/Http/Validators  * Handle an incoming request. * @param /Illuminate/Http/Request $request * @param /Closure $next * @return mixed public function handle(Request $request, Closure $next, $validator = null) if ($request- isMethod( POST )) { $type = $request- segment(1); if ($validator) { $validator = $this- namespace . // . studly_case($type) . // . studly_case($validator) . Validator  $validator = new $validator($request- all()); if (!$validator- passes()) { if ($request- isAjax()) { return $validator- errors()- first(); } else { return redirect()- back() - withErrors($validator- getValidator()) - withInput(); return $next($request);}

 ?phpnamespace App/Http/Validators/Admin;use App/Http/Validators/AbstractValidator;class TestValidator extends AbstractValidator * Validation rules * @var Array protected $rules = array( name = [ required , test , min:1 ], * Validation messages * @var Array protected $messages = array( name.required = 必填 , name.min = 最少1个字符 , name.test = 测试 , * 自定义验证规则或者扩展Validator类 public function before() $this- extend( test , function ($attribute, $value, $parameters) { return bool;}

Route::post( / , [ middleware = [ valiAdmin:Test ], uses = IndexController@test 

具体使用可以自行配置~

以上就是laravel中validator的使用方法介绍（代码示例）的详细内容，PHP教程

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