[11.x] Add optional parameter for confirmed validator rule (#52722)

* Add ability to set confirmed:fieldName * Fix style

Author: jwpage

src/Illuminate/Validation/Concerns/ValidatesAttributes.php

@@ -493,11 +493,12 @@ public function validateBoolean($attribute, $value)
  *
  * @param string $attribute
  * @param mixed $value
+ * @param array{0: string} $parameters
  * @return bool
  */
- public function validateConfirmed($attribute, $value)
+ public function validateConfirmed($attribute, $value, $parameters)
  {
- return $this->validateSame($attribute, $value, [$attribute.'_confirmation']);
+ return $this->validateSame($attribute, $value, [$parameters[0] ?: $attribute.'_confirmation']);
  }
 
  /**

tests/Validation/ValidationValidatorTest.php

@@ -2124,6 +2124,12 @@ public function testValidateConfirmed()
 
  $v = new Validator($trans, ['password' => '1e2', 'password_confirmation' => '100'], ['password' => 'Confirmed']);
  $this->assertFalse($v->passes());
+
+ $v = new Validator($trans, ['password' => 'foo', 'passwordConfirmation' => 'foo'], ['password' => 'Confirmed:passwordConfirmation']);
+ $this->assertTrue($v->passes());
+
+ $v = new Validator($trans, ['password' => 'foo', 'passwordConfirmation' => 'bar'], ['password' => 'Confirmed:passwordConfirmation']);
+ $this->assertFalse($v->passes());
  }
 
  public function testValidateSame()