AppUtils\Request_Param_Validator_Alpha

Complexity

Total Complexity

4

Size/Duplication

Total Lines	18
Duplicated Lines	0 %

Importance

Changes	1
Bugs	0	Features	0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	_validate()	0	11	3
A	getDefaultOptions()	0	3	1

<?php
/**
 * File containing the {@link Request_Param_Validator_Alpha} class.
 *
 * @package Application Utils
 * @subpackage Request
 * @see Request_Param_Validator_Alpha
 */

declare(strict_types=1);

namespace AppUtils;

/**
 * Validates a string containing only letters, lowercase and uppercase.
 * 
 * @package Application Utils
 * @subpackage Request
 * @author Sebastian Mordziol <s.mordziol@mistralys.eu>
 */
class Request_Param_Validator_Alpha extends Request_Param_Validator
{
    public function getDefaultOptions() : array
    {
        return array();
    }
    
    protected function _validate()
    {
        if(!is_scalar($this->value)) {
            return null;
        }
        
        if(preg_match('/\A[a-zA-Z]+\z/', $this->value)) {
            return $this->value;
        }
        
        return null;
    }
}