32 lines
1.0 KiB
PHP
Executable File
32 lines
1.0 KiB
PHP
Executable File
<?php
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declare(strict_types=1);
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namespace Sabre\VObject\TimezoneGuesser;
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use DateTimeZone;
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/**
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* Some clients add 'X-LIC-LOCATION' with the olson name.
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*/
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class FindFromOffset implements TimezoneFinder
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{
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public function find(string $tzid, bool $failIfUncertain = false): ?DateTimeZone
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{
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// Maybe the author was hyper-lazy and just included an offset. We
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// support it, but we aren't happy about it.
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if (preg_match('/^GMT(\+|-)([0-9]{4})$/', $tzid, $matches)) {
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// Note that the path in the source will never be taken from PHP 5.5.10
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// onwards. PHP 5.5.10 supports the "GMT+0100" style of format, so it
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// already gets returned early in this function. Once we drop support
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// for versions under PHP 5.5.10, this bit can be taken out of the
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// source.
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// @codeCoverageIgnoreStart
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return new DateTimeZone('Etc/GMT'.$matches[1].ltrim(substr($matches[2], 0, 2), '0'));
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// @codeCoverageIgnoreEnd
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}
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return null;
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}
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}
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