PHP我如何計算相對時間？

Question

可能重複：
PHP: producing relative date/time from timestamps

給出一個具體的日期時間值，如何顯示相對時間像

• 36分鐘前
• 3小時前
• 3天前
• 1個月前

etc等等？

mysql_query("UPDATE users SET lastlogin = ".time()." WHERE id = ".$userID); 

Answer 1

strtotime是一個不錯的功能

讓我更具體

strtotime(-5 days); 

或

strtotime(-1 month); 

有一個可選的第二個參數是時間另一個時間戳你想開始，給你的relative時間。爲什麼downvote？

Answer 2

<?php 
function relativeTime($time = false, $limit = 86400, $format = 'g:i A M jS') { 
    if (empty($time) || (!is_string($time) &amp;&amp; !is_numeric($time))) $time = time(); 
    elseif (is_string($time)) $time = strtotime($time); 

    $now = time(); 
    $relative = ''; 

    if ($time === $now) $relative = 'now'; 
    elseif ($time > $now) $relative = 'in the future'; 
    else { 
     $diff = $now - $time; 

     if ($diff >= $limit) $relative = date($format, $time); 
     elseif ($diff < 60) { 
      $relative = 'less than one minute ago'; 
     } elseif (($minutes = ceil($diff/60)) < 60) { 
      $relative = $minutes.' minute'.(((int)$minutes === 1) ? '' : 's').' ago'; 
     } else { 
      $hours = ceil($diff/3600); 
      $relative = 'about '.$hours.' hour'.(((int)$hours === 1) ? '' : 's').' ago'; 
     } 
    } 

    return $relative; 
} 
?> 

Source

Answer 3

這可能會幫助你

function time_ago_en($time) 
    { 
     if(!is_numeric($time)) 
      $time = strtotime($time); 

     $periods = array("second", "minute", "hour", "day", "week", "month", "year", "age"); 
     $lengths = array("60","60","24","7","4.35","12","100"); 

     $now = time(); 

     $difference = $now - $time; 
     if ($difference <= 10 && $difference >= 0) 
      return $tense = 'just now'; 
     elseif($difference > 0) 
      $tense = 'ago'; 
     elseif($difference < 0) 
      $tense = 'later'; 

     for($j = 0; $difference >= $lengths[$j] && $j < count($lengths)-1; $j++) { 
      $difference /= $lengths[$j]; 
     } 

     $difference = round($difference); 

     $period = $periods[$j] . ($difference >1 ? 's' :''); 
     return "{$difference} {$period} {$tense} "; 
    } 

例

<?php 

echp time_ago_en(time() - 300); 
// 5 minutes ago 
?>