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<?php |
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|
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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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|
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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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|
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// "0000-00-00 00:00:00" == -62169984000 |
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if ( - 62169984000 == $timestamp_gmt ) { |
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// WordPress sets post_date=now, post_date_gmt="0000-00-00 00:00:00" for all drafts |
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// WordPress sets post_modified=now, post_modified_gmt="0000-00-00 00:00:00" for new drafts |
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|
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// Try to guess the correct offset from the blog's options. |
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$timezone_string = get_option( 'timezone_string' ); |
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|
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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 - $timestamp_gmt; |
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} |
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|
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$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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|
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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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/** |
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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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|
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// Bail early if we don't recognize a date. |
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if ( empty( $timestamp ) ) { |
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return; |
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} |
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|
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$days = floor( $timestamp / 86400 ); |
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$timestamp = $timestamp % 86400; |
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|
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$hours = floor( $timestamp / 3600 ); |
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$timestamp = $timestamp % 3600; |
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|
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$minutes = floor( $timestamp / 60 ); |
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$timestamp = $timestamp % 60; |
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|
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return (string) sprintf( |
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'P%dDT%dH%dM%dS', |
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$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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|
