for testing and deploying your application
for finding and fixing issues
for empowering human code reviews
<?php
declare(strict_types=1);
namespace Stadly\PasswordPolice\CodeMap;
use Stadly\PasswordPolice\CodeMap;
final class LeetspeakMap implements CodeMap
{
private const ENCODE_MAP = [
'A' => ['4', '@', '∂'],
'B' => ['8', 'ß'],
'C' => ['(', '¢', '<', '[', '©'],
'D' => ['∂'],
'E' => ['3', '€', 'є'],
'F' => ['ƒ'],
'G' => ['6', '9'],
'H' => ['#'],
'I' => ['1', '!', '|', ':'],
'J' => ['¿'],
'K' => ['X'],
'L' => ['1', '£', 'ℓ'],
'O' => ['0', '°'],
'R' => ['2', '®', 'Я'],
'S' => ['5', '$', '§'],
'T' => ['7', '†'],
'U' => ['µ'],
'W' => ['vv'],
'X' => ['×'],
'Y' => ['φ', '¥'],
'Z' => ['2', '≥'],
];
/**
* @var array<int, array<string|int, array<string>>> Leetspeak code map.
*/
private $codeMap = [];
* @param bool $encode Whether the map should encode or decode Leetspeak.
public function __construct(bool $encode = false)
if ($encode) {
foreach (self::ENCODE_MAP as $char => $codedChars) {
$this->codeMap[mb_strlen($char)][mb_strtoupper($char)] = $codedChars;
}
} else {
foreach ($codedChars as $codedChar) {
$this->codeMap[mb_strlen($codedChar)][mb_strtoupper($codedChar)][] = $char;
* @inheritDoc
public function getLengths(): array
return array_keys($this->codeMap);
public function code(string $string): array
// Add coded characters.
$codeMap = $this->codeMap[mb_strlen($string)][mb_strtoupper($string)] ?? [];
// Add uncoded character.
$codeMap[] = $string;
return $codeMap;
Stadly /
PasswordPolice
