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<?php |
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/** |
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* GpsLab component. |
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* |
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* @author Peter Gribanov <[email protected]> |
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* @copyright Copyright (c) 2011, Peter Gribanov |
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* @license http://opensource.org/licenses/MIT |
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*/ |
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namespace GpsLab\Component\Base64UID\Generator; |
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use GpsLab\Component\Base64UID\Exception\ArgumentTypeException; |
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use GpsLab\Component\Base64UID\Exception\InvalidArgumentException; |
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use GpsLab\Component\Base64UID\Exception\ZeroArgumentException; |
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class RandomCharGenerator implements Generator |
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{ |
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/** |
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* TODO use private const after drop PHP < 7.1. |
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* |
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* @var string |
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*/ |
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private static $DEFAULT_CHARSET = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-'; |
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/** |
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* @var int |
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*/ |
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private $uid_length; |
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/** |
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* @var string |
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*/ |
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private $charset; |
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/** |
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* @var int |
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*/ |
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private $charset_size; |
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/** |
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* @param int $uid_length |
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* @param string $charset |
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*/ |
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public function __construct($uid_length = 10, $charset = null) |
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{ |
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// TODO move to method arguments after drop PHP < 7.1 |
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10 |
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if ($charset === null) { |
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6 |
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$charset = self::$DEFAULT_CHARSET; |
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} |
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10 |
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if (!is_int($uid_length)) { |
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1 |
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throw new ArgumentTypeException(sprintf('Length of UID should be integer, got "%s" instead.', gettype($uid_length))); |
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} |
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if (!is_string($charset)) { |
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1 |
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throw new ArgumentTypeException(sprintf('Charset of UID should be a string, got "%s" instead.', gettype($charset))); |
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} |
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if ($uid_length <= 0) { |
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throw new ZeroArgumentException(sprintf('Length of UID should be grate then "0", got "%d" instead.', $uid_length)); |
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} |
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if ($charset === '') { |
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1 |
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throw new InvalidArgumentException('Charset of UID should not be empty.'); |
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} |
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5 |
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$this->uid_length = $uid_length; |
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5 |
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$this->charset = $charset; |
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5 |
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$this->charset_size = strlen($charset); |
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5 |
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} |
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/** |
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* @return string |
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*/ |
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public function generate() |
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{ |
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$uid = ''; |
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5 |
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for ($i = 0; $i < $this->uid_length; ++$i) { |
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$uid .= $this->charset[random_int(0, $this->charset_size - 1)]; |
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} |
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return $uid; |
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} |
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} |
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gpslab /
base64uid
