Laravel validator required specific word - laravel

Question

I need to validate a string must contains a specific word in the controller.
Something Like this ("%name%" is necessary):
$request->validate([
'pattern' => ['required', 'must_contains:%name%'],
]);

Answer 1

You can create a Custom Rule. To create the custome rule you can do:
php artisan make:rule StrMustContain
Setup class like so:
<?php
namespace App\Rules;
use Illuminate\Contracts\Validation\Rule;
class StrMustContain implements Rule
{
/**
* Determine if the validation rule passes.
*
* #param string $attribute
* #param mixed $value
* #return bool
*/
public function passes($attribute, $value)
{
return str_contains('Magic Phrase', $value);
}
/**
* Get the validation error message.
*
* #return string
*/
public function message()
{
return 'The expected pattern does not match.';
}
}
Then you can use like:
$request->validate([
'pattern' => ['required', new StrMustContain],
]);

Answer 2

I created a custom validation using this command:
php artisan make:rule StrMustContain
And then changed the class like this:
<?php
namespace App\Rules;
use Illuminate\Contracts\Validation\Rule;
class StrMustContain implements Rule
{
public $str;
/**
* Create a new rule instance.
*
* #return void
*/
public function __construct($str)
{
$this->str = $str;
}
/**
* Determine if the validation rule passes.
*
* #param string $attribute
* #param mixed $value
* #return bool
*/
public function passes($attribute, $value)
{
return str_contains($value, $this->str);
}
/**
* Get the validation error message.
*
* #return string
*/
public function message()
{
return 'The phrase '.$this->str.' is required.';
}
}
Then I used that:
$request->validate([
'pattern' => ['required', new StrMustContain('%name%')],
]);