13845548032

Committed 13 Mar 2025 10:07PM UTC coverage: 100.0%. Remained the same

Build Type

push

github

Committed by

Commit Message

github: workflow: updates (#11)

Run Details

136 of 136 relevant lines covered (100.0%)

4.94 hits per line

Source File
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100.0

/src/Base83.php

1	<?php
2
3	namespace kornrunner\Blurhash;
4
5	use InvalidArgumentException;
6
7	class Base83 {
8	private const ALPHABET = [
9	'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D',
10	'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R',
11	'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
12	'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't',
13	'u', 'v', 'w', 'x', 'y', 'z', '#', '$', '%', '*', '+', ',', '-', '.',
14	':', ';', '=', '?', '@', '[', ']', '^', '_', '{', '\|', '}', '~'
15	];
16
17	private const BASE = 83;
18
19	public static function encode(int $value, int $length): string {
20	if (intdiv($value, self::BASE ** $length) != 0) {	7✔
21	throw new InvalidArgumentException('Specified length is too short to encode given value.');	1✔
22	}
23
24	$result = '';	6✔
25	for ($i = 1; $i <= $length; $i++) {	6✔
26	$digit = intdiv($value, self::BASE ** ($length - $i)) % self::BASE;	6✔
27	$result .= self::ALPHABET[$digit];	6✔
28	}
29	return $result;	6✔
30	}
31
32	public static function decode(string $hash): int {
33	$result = 0;	10✔
34	foreach (str_split($hash) as $char) {	10✔
35	$result = $result * self::BASE + (int) array_search($char, self::ALPHABET, true);	10✔
36	}
37	return $result;	10✔
38	}
39	}