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<?php
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namespace Faker\Provider\en_SG;
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use Faker\Provider\DateTime;
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class Person extends \Faker\Provider\Person
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{
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/**
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* National Registration Identity Card number
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*
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* @param \DateTime|null $birthDate birth date
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*
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* @return string in format S1234567D or T1234567J
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*/
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public static function nric(?\DateTime $birthDate = null): string
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{
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return self::singaporeId($birthDate, false);
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}
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/**
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* Foreign Identification Number
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*
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* @param \DateTime|null $issueDate issue date
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*
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* @return string in format F1234567N or G1234567X
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*/
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public static function fin(?\DateTime $issueDate = null): string
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{
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return self::singaporeId($issueDate, true);
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}
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/**
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* Singapore NRIC (citizens) or FIN (foreigners) number
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*
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* @param \DateTime|null $issueDate birth/issue date
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* @param bool $foreigner whether a person is foreigner or citizen
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*
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* @return string in format S1234567D, T1234567J, F1234567N or G1234567X
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*/
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public static function singaporeId(?\DateTime $issueDate = null, bool $foreigner = false): string
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{
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if ($issueDate === null) {
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$issueDate = DateTime::dateTimeThisCentury();
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}
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$weights = [2, 7, 6, 5, 4, 3, 2];
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$result = '';
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if ($foreigner) {
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$prefix = ($issueDate < new \DateTime('2000-01-01')) ? 'F' : 'G';
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$checksumArr = ['X', 'W', 'U', 'T', 'R', 'Q', 'P', 'N', 'M', 'L', 'K'];
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} else {
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$prefix = ($issueDate < new \DateTime('2000-01-01')) ? 'S' : 'T';
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// NRICs before 1968 did not contain YOB
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$result .= ($issueDate < new \DateTime('1968-01-01')) ? static::randomElement(['00', '01']) : $issueDate->format('y');
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$checksumArr = ['J', 'Z', 'I', 'H', 'G', 'F', 'E', 'D', 'C', 'B', 'A'];
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}
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$length = count($weights);
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for ($i = strlen($result); $i < $length; ++$i) {
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$result .= static::randomDigit();
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}
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$checksum = in_array($prefix, ['G', 'T'], true) ? 4 : 0;
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for ($i = 0; $i < $length; ++$i) {
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$checksum += (int) $result[$i] * $weights[$i];
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}
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return $prefix . $result . $checksumArr[$checksum % 11];
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}
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}
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