31 lines
886 B
PHP
31 lines
886 B
PHP
<?php
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namespace JsonSchema;
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class Rfc3339
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{
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const REGEX = '/^(\d{4}-\d{2}-\d{2}[T ]{1}\d{2}:\d{2}:\d{2})(\.\d+)?(Z|([+-]\d{2}):?(\d{2}))$/';
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/**
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* Try creating a DateTime instance
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*
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* @param string $string
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*
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* @return \DateTime|null
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*/
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public static function createFromString($string)
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{
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if (!preg_match(self::REGEX, strtoupper($string), $matches)) {
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return null;
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}
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$dateAndTime = $matches[1];
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$microseconds = $matches[2] ?: '.000000';
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$timeZone = 'Z' !== $matches[3] ? $matches[4] . ':' . $matches[5] : '+00:00';
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$dateFormat = strpos($dateAndTime, 'T') === false ? 'Y-m-d H:i:s.uP' : 'Y-m-d\TH:i:s.uP';
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$dateTime = \DateTime::createFromFormat($dateFormat, $dateAndTime . $microseconds . $timeZone, new \DateTimeZone('UTC'));
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return $dateTime ?: null;
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}
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}
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