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89 lines
2.2 KiB
PHP
89 lines
2.2 KiB
PHP
<?php
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class WPCOM_JSON_API_Date {
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/**
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* Returns ISO 8601 formatted datetime: 2011-12-08T01:15:36-08:00
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*
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* @param $date_gmt (string) GMT datetime string.
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* @param $date (string) Optional. Used to calculate the offset from GMT.
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*
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* @return string
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*/
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static function format_date( $date_gmt, $date = null ) {
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$timestamp_gmt = strtotime( "$date_gmt+0000" );
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if ( null === $date ) {
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$timestamp = $timestamp_gmt;
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$hours = $minutes = $west = 0;
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} else {
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$date_time = date_create( "$date+0000" );
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if ( $date_time ) {
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$timestamp = date_format( $date_time, 'U' );
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} else {
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$timestamp = 0;
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}
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// "0000-00-00 00:00:00" == -62169984000
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if ( - 62169984000 == $timestamp_gmt ) {
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// WordPress sets post_date=now, post_date_gmt="0000-00-00 00:00:00" for all drafts
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// WordPress sets post_modified=now, post_modified_gmt="0000-00-00 00:00:00" for new drafts
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// Try to guess the correct offset from the blog's options.
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$timezone_string = get_option( 'timezone_string' );
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if ( $timezone_string && $date_time ) {
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$timezone = timezone_open( $timezone_string );
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if ( $timezone ) {
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$offset = $timezone->getOffset( $date_time );
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}
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} else {
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$offset = 3600 * get_option( 'gmt_offset' );
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}
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} else {
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$offset = $timestamp - $timestamp_gmt;
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}
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$west = $offset < 0;
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$offset = abs( $offset );
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$hours = (int) floor( $offset / 3600 );
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$offset -= $hours * 3600;
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$minutes = (int) floor( $offset / 60 );
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}
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return (string) gmdate( 'Y-m-d\\TH:i:s', $timestamp ) . sprintf( '%s%02d:%02d', $west ? '-' : '+', $hours, $minutes );
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}
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/**
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* Returns ISO 8601 formatted duration interval: P0DT1H10M0S
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*
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* @param string $time Duration in minutes or hours.
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*
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* @return null|string
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*/
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static function format_duration( $time ) {
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$timestamp = strtotime( $time, 0 );
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// Bail early if we don't recognize a date.
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if ( empty( $timestamp ) ) {
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return;
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}
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$days = floor( $timestamp / 86400 );
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$timestamp = $timestamp % 86400;
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$hours = floor( $timestamp / 3600 );
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$timestamp = $timestamp % 3600;
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$minutes = floor( $timestamp / 60 );
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$timestamp = $timestamp % 60;
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return (string) sprintf(
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'P%dDT%dH%dM%dS',
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$days,
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$hours,
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$minutes,
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$timestamp
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);
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}
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}
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