Author:
brendo
Version:
1.0
Release Date:
22 Jul 2009
Category:
Date & Time

Description

Essentially the same as Nick Dunn’s original script, but with extra niceness added for yesterday, tomorrow, last month, last year, next month, next year.

XSLT

View Raw
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:date="http://exslt.org/dates-and-times" xmlns:math="http://exslt.org/math" extension-element-prefixes="date math">

<xsl:template name="time-ago">
	<xsl:param name="date-and-time"/>
	
	<xsl:variable name="now" select="concat($today, 'T', $current-time, ':00')" />
	<xsl:variable name="minutes" select="date:seconds(date:difference($date-and-time, $now)) div 60" />
	<xsl:variable name="delta-minutes" select="math:abs($minutes)" />
	
	<xsl:variable name="delta-in-words">
		<xsl:choose>
			<xsl:when test="$delta-minutes &lt; 1">
				<xsl:text>less than a minute</xsl:text>
			</xsl:when>
			<xsl:when test="$delta-minutes = 1">
				<xsl:text>1 minute</xsl:text>
			</xsl:when>
			<xsl:when test="$delta-minutes &lt; 45">
				<xsl:value-of select="$minutes"/>
				<xsl:text> minutes</xsl:text>
			</xsl:when>
			<xsl:when test="$delta-minutes &lt; 90">
				<xsl:text>about one hour</xsl:text>
			</xsl:when>
			<xsl:when test="$delta-minutes &lt; 1440">
				<xsl:value-of select="floor($delta-minutes div 60)"/>
				<xsl:text> hours</xsl:text>
			</xsl:when>
			<xsl:when test="$delta-minutes &lt; 2880">
				<xsl:text>one day</xsl:text>
			</xsl:when>
			<xsl:when test="$delta-minutes &lt; 43200">
				<xsl:value-of select="round($delta-minutes div 1440)"/>
				<xsl:text> days</xsl:text>
			</xsl:when>
			<xsl:when test="$delta-minutes &lt; 86400">
				<xsl:text> about one month</xsl:text>
			</xsl:when>
			<xsl:when test="$delta-minutes &lt; 525600">
				<xsl:value-of select="floor($delta-minutes div 43200)"/>
				<xsl:text> months</xsl:text>
			</xsl:when>
			<xsl:when test="$delta-minutes &lt; 1051200">
				<xsl:value-of select="floor($delta-minutes div 10080)"/>
				<xsl:text> about one year</xsl:text>
			</xsl:when>
			<xsl:otherwise>
				<xsl:value-of select="floor($delta-minutes div 525600)"/>
				<xsl:text> years</xsl:text>
			</xsl:otherwise>
		</xsl:choose>
	</xsl:variable>

	<xsl:choose>
		<xsl:when test='$minutes &lt; 0'>
			<xsl:choose>
				<xsl:when test='$delta-in-words = "one day"'>
					<xsl:text> tomorrow</xsl:text>
				</xsl:when>
				<xsl:when test='$delta-in-words = "about one month"'>
					<xsl:text> last month</xsl:text>
				</xsl:when>
				<xsl:when test='$delta-in-words = "about one year"'>
					<xsl:text> last year</xsl:text>
				</xsl:when>
				<xsl:otherwise>
					<xsl:value-of select='$delta-in-words' />
					<xsl:text> from now</xsl:text>
				</xsl:otherwise>
			</xsl:choose>			
		</xsl:when>
		<xsl:otherwise>
			<xsl:choose>
				<xsl:when test='$delta-in-words = "one day"'>
					<xsl:text> yesterday</xsl:text>
				</xsl:when>
				<xsl:when test='$delta-in-words = "about one month"'>
					<xsl:text> next month</xsl:text>
				</xsl:when>
				<xsl:when test='$delta-in-words = "about one year"'>
					<xsl:text> next year</xsl:text>
				</xsl:when>
				<xsl:otherwise>
					<xsl:value-of select='$delta-in-words' />
					<xsl:text> ago</xsl:text>
				</xsl:otherwise>
			</xsl:choose>
		</xsl:otherwise>
	</xsl:choose>
</xsl:template>

</xsl:stylesheet>

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Server Requirements

  • PHP 5.3-5.6 or 7.0-7.3
  • PHP's LibXML module, with the XSLT extension enabled (--with-xsl)
  • MySQL 5.5 or above
  • An Apache or Litespeed webserver
  • Apache's mod_rewrite module or equivalent

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