Analysis of Implementation Method of Custom Verifier in thinkPHP5 Framework

This paper describes the implementation method of thinkPHP5 framework custom verifier with an example. Share it for your reference, as follows:

The general validator manual has been very detailed, let's explain how to customize a validator

First, we set up the validata folder in the module directory

Then create a class in it, named IdMustInt. php

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

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

namespace app\api\validate;
use think\Validate;
class IdMustInt extends Validate
{
  protected $rule = [
    'id' => 'require|IsInt'
  ];
  protected function IsInt($value,$rule,$data,$field){
  // Parameters are validation data, validation rule, all data (array), field name 
  // The validation data we want to judge here must be of positive integer type 
    if(is_numeric($value) && is_int($value+0) && ($value+0) > 0){
      return true;
    }else{
  // If our conditions are not met, an error message is returned, which can be used in the controller getError() Method output 
      return $field.' Is not an integer ';
    }
  }
}

Next, look at the corresponding operation of our controller

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

For more readers interested in thinkPHP related contents, please check the topics of this site: "ThinkPHP Introduction Tutorial", "thinkPHP Template Operation Skills Summary", "ThinkPHP Common Methods Summary", "codeigniter Introduction Tutorial", "CI (CodeIgniter) Framework Advanced Tutorial", "Zend FrameWork Framework Introduction Tutorial" and "PHP Template Technology Summary".

I hope this article is helpful to the PHP programming based on ThinkPHP framework.