Analysis of the implementation method of thinkPHP5 framework custom validator

This article describes the implementation method of the custom validator of thinkPHP5 framework. Share it for your reference, as follows:

The ordinary validator manual is already very detailed, let’s explain how to customize a validator

First, we create a validat folder in the module directory

Then create a class inside, named

The code is as follows: Note that my module is named api, so the namespace is as follows

The protection attribute $rule is an official regulation and cannot be changed. In fact, the verification rules require are all encapsulated function names, so we also establish a method, and the method name can be filled in after the verification rules.

namespace app\api\validate;
use think\Validate;
class IdMustInt extends Validate
{
  protected $rule = [
    'id' => 'require|IsInt'
  ];
  protected function IsInt($value,$rule,$data,$field){
  //The parameters are verification data, verification rules, all data (array), and field names in turn  //The verification data requirements we want to judge here must be positive integer    if(is_numeric($value) && is_int($value+0) && ($value+0) > 0){
      return true;
    }else{
  //If our conditions do not meet, return an error message. You can use the getError() method to output it in the controller      return $field.'Not an integer';
    }
  }
}

Next, let’s take a look at the corresponding operations of our controller

public function getBanner($id)
{
    //Data that needs to be verified    $data = [
      'id' => $id,
    ];
  //Instantiate the validator    $validate = new IdMustInt();
  //If there are many verification data and many conditions, and all error messages need to be returned in batches, you can add $validata->batch() before check()    $result = $validate->check($data);
    if($result){
      //Business Logic    }else{
      dump($validate->getError());
    }
}

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I hope that the description in this article will be helpful to everyone's PHP programming based on the ThinkPHP framework.