IsInstanceOf Validator
This validator can be used to determine whether a given object is an instance of a specific class or interface.
Supported Options
The IsInstanceOf validator supports the below option:
class: Defines the fully-qualified class name which objects must be an instance of.
Usage
There are two different ways in which all Sparta validators can be used. See below examples for more explanations:
Example #1:
You can simply instantiate the IsInstanceOf validator and pass to it the data that you want to validate.
<?php
use Sparta\Validators\IsInstanceOf;
$validator = IsInstanceOf('Sparta\Validators\Alpha');
if(!$validator->isValid(new Sparta\Validators\Alpha())){
//handle errors
}You can also set the class value using validator setter method setClass:
<?php
use Sparta\Validators\IsInstanceOf;
$validator = IsInstanceOf();
$validator->setClass('Sparta\Validators\Alpha');
Example #2:
You can build your validation rules and pass it to the Validation object to handle as shown below:
<?php
use Sparta\Validation;
$rules = [
'object' => 'is_instance_of:class=Sparta\Validators\Alpha',
];
//Assuming that your $data has an element with the key "password"
$validation = new Validation($data, $rules);
if(!$validation->isValid()){
//handle errors
}
In case of validation failure, error messages can be retrieved using the getErrors method.
Note: You can even write the rule in a shorter format as follows:
<?php $rules = [ 'password' => 'is_instance_of:Sparta\Validators\Alpha', ];