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"Time Ago" Calculation

/ Published in: PHP
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Accepts a UNIX timestamp, like the result of time(), and formats it into "# (days/months/etc) ago"

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  1. function ago($time)
  2. {
  3.    $periods = array("second", "minute", "hour", "day", "week", "month", "year", "decade");
  4.    $lengths = array("60","60","24","7","4.35","12","10");
  5.  
  6.    $now = time();
  7.  
  8.        $difference     = $now - $time;
  9.        $tense         = "ago";
  10.  
  11.    for($j = 0; $difference >= $lengths[$j] && $j < count($lengths)-1; $j++) {
  12.        $difference /= $lengths[$j];
  13.    }
  14.  
  15.    $difference = round($difference);
  16.  
  17.    if($difference != 1) {
  18.        $periods[$j].= "s";
  19.    }
  20.  
  21.    return "$difference $periods[$j] 'ago' ";
  22. }

URL: http://css-tricks.com/snippets/php/time-ago-function/

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