101 lines
2.4 KiB
PHP
101 lines
2.4 KiB
PHP
<?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.md"
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* file that was distributed with this source code.
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*/
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namespace Respect\Validation\Rules;
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use Respect\Validation\Exceptions\ComponentException;
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class Length extends AbstractRule
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{
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public $minValue;
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public $maxValue;
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public $inclusive;
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public function __construct($min = null, $max = null, $inclusive = true)
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{
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$this->minValue = $min;
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$this->maxValue = $max;
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$this->inclusive = $inclusive;
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$paramValidator = new OneOf(new Numeric(), new NullType());
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if (!$paramValidator->validate($min)) {
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throw new ComponentException(
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sprintf('%s is not a valid numeric length', $min)
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);
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}
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if (!$paramValidator->validate($max)) {
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throw new ComponentException(
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sprintf('%s is not a valid numeric length', $max)
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);
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}
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if (!is_null($min) && !is_null($max) && $min > $max) {
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throw new ComponentException(
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sprintf('%s cannot be less than %s for validation', $min, $max)
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);
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}
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}
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public function validate($input)
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{
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$length = $this->extractLength($input);
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return $this->validateMin($length) && $this->validateMax($length);
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}
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protected function extractLength($input)
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{
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if (is_string($input)) {
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return mb_strlen($input, mb_detect_encoding($input));
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}
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if (is_array($input) || $input instanceof \Countable) {
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return count($input);
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}
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if (is_object($input)) {
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return count(get_object_vars($input));
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}
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if (is_int($input)) {
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return strlen((string)$input);
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}
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return false;
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}
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protected function validateMin($length)
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{
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if (is_null($this->minValue)) {
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return true;
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}
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if ($this->inclusive) {
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return $length >= $this->minValue;
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}
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return $length > $this->minValue;
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}
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protected function validateMax($length)
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{
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if (is_null($this->maxValue)) {
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return true;
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}
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if ($this->inclusive) {
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return $length <= $this->maxValue;
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}
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return $length < $this->maxValue;
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}
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}
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