HighSpeaker/vendor/workerman/validation/library/Rules/StartsWith.php
2022-12-24 22:10:40 +08:00

86 lines
1.8 KiB
PHP

<?php
/*
* This file is part of Respect/Validation.
*
* (c) Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
*
* For the full copyright and license information, please view the LICENSE file
* that was distributed with this source code.
*/
declare(strict_types=1);
namespace Respect\Validation\Rules;
use function is_array;
use function mb_detect_encoding;
use function mb_stripos;
use function mb_strpos;
use function reset;
/**
* Validates whether the input starts with a given value.
*
* @author Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
* @author Henrique Moody <henriquemoody@gmail.com>
* @author Marcelo Araujo <msaraujo@php.net>
*/
final class StartsWith extends AbstractRule
{
/**
* @var mixed
*/
private $startValue;
/**
* @var bool
*/
private $identical;
/**
* @param mixed $startValue
*/
public function __construct($startValue, bool $identical = false)
{
$this->startValue = $startValue;
$this->identical = $identical;
}
/**
* {@inheritDoc}
*/
public function validate($input): bool
{
if ($this->identical) {
return $this->validateIdentical($input);
}
return $this->validateEquals($input);
}
/**
* @param mixed $input
*/
protected function validateEquals($input): bool
{
if (is_array($input)) {
return reset($input) == $this->startValue;
}
return mb_stripos($input, $this->startValue, 0, (string) mb_detect_encoding($input)) === 0;
}
/**
* @param mixed $input
*/
protected function validateIdentical($input): bool
{
if (is_array($input)) {
return reset($input) === $this->startValue;
}
return mb_strpos($input, $this->startValue, 0, (string) mb_detect_encoding($input)) === 0;
}
}