85 lines
2.0 KiB
PHP
85 lines
2.0 KiB
PHP
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<?php
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/*
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* This file is part of Respect/Validation.
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*
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* (c) Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
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*
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* For the full copyright and license information, please view the LICENSE file
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* that was distributed with this source code.
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*/
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declare(strict_types=1);
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namespace Respect\Validation\Rules;
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use function in_array;
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use function is_array;
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use function is_scalar;
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use function mb_detect_encoding;
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use function mb_stripos;
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use function mb_strpos;
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/**
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* Validates if the input contains some value.
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*
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* @author Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
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* @author Henrique Moody <henriquemoody@gmail.com>
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* @author Marcelo Araujo <msaraujo@php.net>
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* @author William Espindola <oi@williamespindola.com.br>
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*/
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final class Contains extends AbstractRule
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{
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/**
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* @var mixed
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*/
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private $containsValue;
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/**
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* @var bool
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*/
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private $identical;
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/**
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* Initializes the Contains rule.
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*
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* @param mixed $containsValue Value that will be sought
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* @param bool $identical Defines whether the value is identical, default is false
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*/
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public function __construct($containsValue, bool $identical = false)
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{
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$this->containsValue = $containsValue;
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$this->identical = $identical;
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}
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/**
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* {@inheritDoc}
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*/
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public function validate($input): bool
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{
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if (is_array($input)) {
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return in_array($this->containsValue, $input, $this->identical);
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}
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if (!is_scalar($input) || !is_scalar($this->containsValue)) {
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return false;
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}
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return $this->validateString((string) $input, (string) $this->containsValue);
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}
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private function validateString(string $haystack, string $needle): bool
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{
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if ($needle === '') {
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return false;
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}
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$encoding = (string) mb_detect_encoding($haystack);
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if ($this->identical) {
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return mb_strpos($haystack, $needle, 0, $encoding) !== false;
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}
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return mb_stripos($haystack, $needle, 0, $encoding) !== false;
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}
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}
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