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<?php |
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namespace LeKoala\Tin\Algo; |
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use LeKoala\Tin\Util\StringUtil; |
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/** |
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* United Kingdom |
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* 10 numerals = UTR: Unique Taxpayer Reference |
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* 9 chars= NINO: National Insurance Number |
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*/ |
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class UKAlgorithm extends TINAlgorithm |
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{ |
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const LENGTH_1 = 10; |
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const PATTERN_1 = "\\d{10}"; |
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const LENGTH_2 = 9; |
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const PATTERN_2 = "[a-ceg-hj-pr-tw-zA-CEG-HJ-PR-TW-Z][a-ceg-hj-npr-tw-zA-CEG-HJ-NPR-TW-Z]\\d{6}[abcdABCD ]"; |
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public function validate(string $tin) |
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{ |
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$normalizedTIN = str_replace("/", "", $tin); |
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if (strlen($tin) == 8) { |
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$normalizedTIN .= " "; |
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} |
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if (!$this->isFollowLength1($normalizedTIN) && !$this->isFollowLength2($normalizedTIN)) { |
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return StatusCode::INVALID_LENGTH; |
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} |
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if (($this->isFollowLength1($normalizedTIN) && !$this->isFollowPattern1($normalizedTIN)) || ($this->isFollowLength2($normalizedTIN) && !$this->isFollowPattern2($normalizedTIN))) { |
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return StatusCode::INVALID_PATTERN; |
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} |
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return StatusCode::VALID; |
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} |
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public function isFollowLength1(string $tin) |
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{ |
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return StringUtil::isFollowLength($tin, self::LENGTH_1); |
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} |
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public function isFollowPattern1(string $tin) |
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{ |
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return StringUtil::isFollowPattern($tin, self::PATTERN_1); |
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} |
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public function isFollowLength2(string $tin) |
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{ |
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return StringUtil::isFollowLength($tin, self::LENGTH_2); |
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} |
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public function isFollowPattern2(string $tin) |
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{ |
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return StringUtil::isFollowPattern($tin, self::PATTERN_2) && $this->isFollowStructureSubRule2($tin); |
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} |
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public function isFollowStructureSubRule2(string $tin) |
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{ |
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$c1c2 = strtoupper(StringUtil::substring($tin, 0, 2)); |
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return !("GB" == $c1c2) && !("NK" == $c1c2) && !("TN" == $c1c2) && !("ZZ" == $c1c2); |
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} |
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} |
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lekoala /
tin
