<?php
/**
* @see https://github.com/laminas/laminas-validator for the canonical source repository
* @copyright https://github.com/laminas/laminas-validator/blob/master/COPYRIGHT.md
* @license https://github.com/laminas/laminas-validator/blob/master/LICENSE.md New BSD License
*/
namespace Laminas\Validator\Sitemap;
use Laminas\Validator\AbstractValidator;
/**
* Validates whether a given value is valid as a sitemap <priority> value
*
* @link http://www.sitemaps.org/protocol.php Sitemaps XML format
*/
class Priority extends AbstractValidator
{
/**
* Validation key for not valid
*
*/
const NOT_VALID = 'sitemapPriorityNotValid';
const INVALID = 'sitemapPriorityInvalid';
/**
* Validation failure message template definitions
*
* @var array
*/
protected $messageTemplates = [
self::NOT_VALID => "The input is not a valid sitemap priority",
self::INVALID => "Invalid type given. Numeric string, integer or float expected",
];
/**
* Validates if a string is valid as a sitemap priority
*
* @link http://www.sitemaps.org/protocol.php#prioritydef <priority>
*
* @param string $value value to validate
* @return bool
*/
public function isValid($value)
{
if (! is_numeric($value)) {
$this->error(self::INVALID);
return false;
}
$this->setValue($value);
$value = (float) $value;
if ($value < 0 || $value > 1) {
$this->error(self::NOT_VALID);
return false;
}
return true;
}
}