php获取时间的几种方法

2. function getWeekName($data,$format = '星期')
3. {
4. $week = date( "D ",$data);
5. switch($week)
6. {
7. case "Mon ":
8. $current = $format."一";
9. break;
10. case "Tue ":
11. $current = $format."二";
12. break;
13. case "Wed ":
14. $current = $format."三";
15. break;
16. case "Thu ":
17. $current = $format."四";
18. break;
19. case "Fri ":
20. $current = $format."五";
21. break;
22. case "Sat ":
23. $current = $format."六"; break;
24. case "Sun ":
25. $current = $format."日";
26. break;
27. }
28. return $current;
29. }
31. echo '今天是：'.getWeekName(time(),'星期');
32. echo '
    ';
33. echo '今天是：'.getWeekName(time(),'礼拜');
34. echo '
    ';
35. echo '2010-12-12是：'.getWeekName(strtotime('2010-12-12'),'礼拜');
36. ?>

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4、获取类似文章发表的几小时前等效果的自定义函数

2. function time2Units ($time)
3. {
4. $year = floor($time / 60 / 60 / 24 / 365);
5. $time -= $year * 60 * 60 * 24 * 365;
6. $month = floor($time / 60 / 60 / 24 / 30);
7. $time -= $month * 60 * 60 * 24 * 30;
8. $week = floor($time / 60 / 60 / 24 / 7);
9. $time -= $week * 60 * 60 * 24 * 7;
10. $day = floor($time / 60 / 60 / 24);
11. $time -= $day * 60 * 60 * 24;
12. $hour = floor($time / 60 / 60);
13. $time -= $hour * 60 * 60;
14. $minute = floor($time / 60);
15. $time -= $minute * 60;
16. $second = $time;
17. $elapse = '';
19. $unitArr = array('年' =>'year', '个月'=>'month', '周'=>'week', '天'=>'day',
20. '小时'=>'hour', '分钟'=>'minute', '秒'=>'second'
21. );
23. foreach ( $unitArr as $cn => $u )
24. {
25. if ( $$u > 0 )
26. {
27. $elapse = $$u . $cn;
28. break;
29. }
30. }
32. return $elapse;
33. }
35. $past = 2052345678; // 发布日期
36. $now = time(); // 当前日期
37. $diff = $now - $past;//相差值
39. echo '发表于' . time2Units($diff) . '前';
40. ?>

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另一种，个人认为比较好的：

2. function time_tran($the_time){
3. $now_time = date("Y-m-d H:i:s",time()+8*60*60);
4. $now_time = strtotime($now_time);
5. $show_time = strtotime($the_time);
6. $dur = $now_time - $show_time;
7. if($dur return $the_time;
8. }else{
9. if($dur return $dur.'秒前';
10. }else{
11. if($dur return floor($dur/60).'分钟前';
12. }else{
13. if($dur return floor($dur/3600).'小时前';
14. }else{
15. if($dur return floor($dur/86400).'天前';
16. }else{
17. return $the_time;
18. }
19. }
20. }
21. }
22. }
23. }
24. ?>

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5、根据两时间差具体算相差时间

2. function getTime( $val ){
3. if($val>0){
4. $nTime['nDay'] = (int)($val/(3600*24));
5. $nTime['nHour'] = (int)($val%(3600*24)/3600);
6. $nTime['nMin'] = (int)($val%(3600*24)%3600/60);
7. $nTime['nSec'] = (int)($val%(3600*24)%3600%60);
8. }
9. return $nTime ;
10. }
11. function getStrTime( $val ){
12. $aTime = getTime($val);
13. $dtoc = array('nDay'=>'天','nHour'=>'小时','nMin'=>'分','nSec'=>'秒');
14. if( $aTime ){
15. foreach( $aTime as $k=>$v){
16. if($v){
17. $cTime .= $v.$dtoc[$k];
18. }
19. }
20. }else{
21. $cTime = '已结止';
22. }
23. return $cTime;
24. }
25. ?>

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