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47 lines
1.1 KiB
PHP
47 lines
1.1 KiB
PHP
<?php
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use Kirby\Http\Url;
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use Kirby\Toolkit\F;
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Kirby::plugin('lukasbestle/dated', [
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'tags' => [
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'dated' => [
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'html' => function($tag) {
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$dated = dated();
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return '<a href="mailto:' . $dated . '">' . $dated . '</a>';
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}
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]
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]
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]);
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/**
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* Returns the current dated address
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*
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* @return string
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*/
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function dated(): string {
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// date in seven days
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$date = modifiedJulianDate(time() + 7 * 24 * 60 * 60);
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return 'dated-' . $date . '@' . Url::host();
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}
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/**
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* Returns the Modified Julian Date,
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* which is the Julian Date with the first two digits stripped
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* and with an offset of one day to compensate for the Julian Date
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* starting at noon instead of at midnight
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*
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* @param int $timestamp Timestamp to calculate from, defaults to the current date
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* @return int
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*/
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function modifiedJulianDate(?int $timestamp = null): int {
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$timestamp = $timestamp ?? time();
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return gregoriantojd(
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date('m', $timestamp),
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date('d', $timestamp),
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date('Y', $timestamp)
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) - 2400001;
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}
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