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php格式化时间显示,类似微博的几分钟前

代码:

 

<?php
date_default_timezone_set('PRC');

function time_show($timestamp)
{
	//获取当前时间戳
	$current_time = time();

	//获取当天0点时间戳
	$today_zero = strtotime('today');

	//当日时间差
	$today_diff = $current_time - $today_zero;

	//时间差
	$time_diff = $current_time - $timestamp;

	if($time_diff < 0)
	{
		return '时间错误';
	}

	if($time_diff > $today_diff)
	{
		return date('Y-m-d H:i', $timestamp);
	}
	else
	{
		if($time_diff > 3600)
		{
			return '今天 '.date('H:i', $timestamp);
		}
		elseif($time_diff > 60)
		{
			$min = floor($time_diff / 60);
			return "{$min} 分钟前";
		}
		else
		{
			return "{$time_diff} 秒前";
		}
	}
}

$time = mktime(10, 24, 0, 8, 21, 2013);
echo time_show($time);	//9 分钟前

友好时间格式化

 

 

 '%s天前',
		'DAY_HOUR'		=> '%s天%s小时前',
		'HOUR' 			=> '%s小时',
		'HOUR_MINUTE' 	=> '%s小时%s分前',
		'MINUTE' 		=> '%s分钟前',
		'MINUTE_SECOND'	=> '%s分钟%s秒前',
		'SECOND'		=> '%s秒前',
	);

	/**
	 * 友好格式化时间
	 * 
	 * @param int 时间
	 * @param array $formats
	 * @return string
	 */
	public static function diff($timestamp, $formats = null) 
	{
		if ($formats == null) {
			$formats = self::$_DIFF_FORMAT;
		}
		/* 计算出时间差 */
		$seconds = time() - $timestamp;
		$minutes = floor($seconds / 60);
		$hours 	 = floor($minutes / 60);
		$days 	 = floor($hours / 24);
		
		if ($days > 0) {
			$diffFormat = 'DAY';
		} else {
			$diffFormat = ($hours > 0) ? 'HOUR' : 'MINUTE';
			if ($diffFormat == 'HOUR') {
				$diffFormat .= ($minutes > 0 && ($minutes - $hours * 60) > 0) ? '_MINUTE' : '';
			} else {
				$diffFormat = (($seconds - $minutes * 60) > 0 && $minutes > 0) 
								? $diffFormat.'_SECOND' : 'SECOND';
			}
		}
		
		$dateDiff = null;
		switch ($diffFormat) {
			case 'DAY':
				$dateDiff = sprintf($formats[$diffFormat], $days);
				break;
			case 'DAY_HOUR':
				$dateDiff = sprintf($formats[$diffFormat], $days, $hours - $days * 60);
				break;
			case 'HOUR':
				$dateDiff = sprintf($formats[$diffFormat], $hours);
				break;
			case 'HOUR_MINUTE':
				$dateDiff = sprintf($formats[$diffFormat], $hours, $minutes - $hours * 60);
				break;
			case 'MINUTE':
				$dateDiff = sprintf($formats[$diffFormat], $minutes);
				break;
			case 'MINUTE_SECOND':
				$dateDiff = sprintf($formats[$diffFormat], $minutes, $seconds - $minutes * 60);
				break;
			case 'SECOND':
				$dateDiff = sprintf($formats[$diffFormat], $seconds);
				break;
		}
		return $dateDiff;
	}
}

echo DateFormat::diff('1310455823');
/* 33分钟47秒前  */

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