将时间转换为为刚刚、几分钟前、几小时前、几天前，有两种思路：
例如
2000-01-01 23:00:00 （需要格式化的时间） 2000-01-02 01:00:00 (此刻)
1、按照天、时、分逐个比较：不看时分秒，就是1天前
2、按照时间戳毫秒之差：要看时分秒，就是2小时前
为了更精确，本例采用 方式2：按照时间戳毫秒之差 的思路实现
目录
PHP 代码实现
<?php /** * @param $time_value int|string 时间戳 * @return false|string * * 时间格式化为： * 刚刚 * 1分钟前-56分钟前 * 1小时前-23小时前 * 1天前-7天前 * 2022-10-09 13:33 */ function timeForHuman($time_value) { // 兼容传入字符串 if (is_string($time_value)) { $time_value = strtotime($time_value); } $second = 1; $minute = $second * 60; $hour = $minute * 60; $day = $hour * 24; $day_8 = $day * 8; $now_time = time(); $duration = $now_time - $time_value; if ($duration < $minute) { return '刚刚'; } else if ($duration < $hour) { return floor($duration / $minute) . '分钟前'; } elseif ($duration < $day) { return floor($duration / $hour) . '小时前'; } else if ($duration < $day_8) { return floor($duration / $day) . '天前'; } else { return date("Y-m-d H:i", $time_value); } }
测试示例
$now_time = time(); $now_str = date('Y-m-d H:i:s', $now_time); echo $now_time . PHP_EOL; // 1665381270 echo $now_str . PHP_EOL; // 2022-10-10 13:54:30 echo timeForHuman($now_time) . PHP_EOL; // 刚刚 echo timeForHuman($now_str) . PHP_EOL; // 刚刚 echo timeForHuman('2022-10-10 13:33:11') . PHP_EOL; // 21分钟前
JavaScript实现版本
/** * 格式化时间为人类可读的字符串格式 * @param {number|string|Date} time_value 13位时间戳 * @returns {string} * * 时间格式化为： * 刚刚 * 1分钟前-56分钟前 * 1小时前-23小时前 * 1天前-7天前 * 2022-10-09 13:33 */ function timeForHuman(time_value) { // 兼容其他类型的参数 if (typeof time_value != 'number') { time_value = Date.parse(time_value) } // 进制转换 let millisecond = 1 let second = millisecond * 1000 let minute = second * 60 let hour = minute * 60 let day = hour * 24 let day_8 = day * 8 now_time = Date.now() duration = now_time - time_value if (duration < minute) { return '刚刚' } else if (duration < hour) { return Math.floor(duration / minute) + '分钟前' } else if (duration < day) { return Math.floor(duration / hour) + '小时前' } else if (duration < day_8) { return Math.floor(duration / day) + '天前' } else { let date = new Date(time_value) return [ [ date.getFullYear(), ('0' + (date.getMonth() + 1)).slice(-2), ('0' + date.getDate()).slice(-2), ].join('-'), [ ('0' + date.getHours()).slice(-2), ('0' + date.getMinutes()).slice(-2), ].join(':'), ].join(' ') } }
测试
console.log(new Date()); // 2022-10-12T02:45:06.286Z console.log(timeForHuman(new Date())) // 刚刚 console.log(timeForHuman(1635476685643)) // 2021-10-29 11:04 console.log(timeForHuman('2021-10-29T03:04:45.640Z')) // 2021-10-29 11:04 console.log(timeForHuman('2022-10-12')) // 2小时前
Python实现版本
import time from datetime import datetime import math DATETIME_FORMAT = "%Y-%m-%d %H:%M:%S" DATETIME_SHORT_FORMAT = "%Y-%m-%d %H:%M" def time_for_human(time_value): """ 格式化时间为人类可读的字符串格式 :param time_value: {int|string|datetime} time_value 10位时间戳 :return: string 时间格式化为： 刚刚 1分钟前-56分钟前 1小时前-23小时前 1天前-7天前 2022-10-09 13:33 """ second = 1 minute = second * 60 hour = minute * 60 day = hour * 24 day_8 = day * 8 if isinstance(time_value, datetime): time_value = time_value.timestamp() if isinstance(time_value, str): time_value = time.mktime(time.strptime(time_value, DATETIME_FORMAT)) now_time = int(time.time()) duration = now_time - time_value if duration < minute: return '刚刚' elif duration < hour: return str(math.floor(duration / minute)) + '分钟前' elif duration < day: return str(math.floor(duration / hour)) + '小时前' elif duration < day_8: return str(math.floor(duration / day)) + '天前' else: return time.strftime(DATETIME_SHORT_FORMAT, time.localtime(time_value))
示例
print(time_for_human(1665381270)) # 2天前 print(time_for_human(datetime.now())) # 刚刚 print(time_for_human(time.time() - 100)) # 1分钟前 print(time_for_human('2022-10-10 13:33:11')) # 2天前
Golang代码实现
package timeutil import ( "fmt" "time" ) // 格式化 const DATE_LAYOUT = "2006-01-02" // 以秒为基本单位的时间枚举常量 const ( SECOND = 1 MINUTE = SECOND * 60 HOUR = MINUTE * 60 DAY = HOUR * 24 DAY_8 = DAY * 8 ) /** * 格式化日期 * timeValue 10位时间戳 */ func TimeForHuman(timeValue int64) string { nowTime := time.Now().Unix() diffTime := nowTime - timeValue if diffTime <= MINUTE { return "刚刚" } else if diffTime < HOUR { return fmt.Sprintf("%d分钟前", int(diffTime/MINUTE)) } else if diffTime <= DAY { return fmt.Sprintf("%d小时前", int(diffTime/HOUR)) } else if diffTime <= DAY_8 { return fmt.Sprintf("%d天前", int(diffTime/DAY)) } else { return time.Unix(timeValue, 0).Format(DATE_LAYOUT) } }
测试代码
package timeutil import ( "fmt" "testing" "time" ) func TestTimeForHuman(t *testing.T) { ret1 := TimeForHuman(time.Now().Unix() - 3*SECOND) fmt.Println(ret1) ret2 := TimeForHuman(time.Now().Unix() - 3*MINUTE) fmt.Println(ret2) ret3 := TimeForHuman(time.Now().Unix() - 3*HOUR) fmt.Println(ret3) ret4 := TimeForHuman(time.Now().Unix() - 3*DAY) fmt.Println(ret4) ret5 := TimeForHuman(time.Now().Unix() - 3*DAY_8) fmt.Println(ret5) }
输出
$ go test 刚刚 3分钟前 3小时前 3天前 2023-01-23 PASS ok timeutil 0.005s
Java代码实现
package com.example; import java.text.SimpleDateFormat; import java.util.Date; public class TimeUtil { public final static long SECOND = 1000; public final static long MINUTE = SECOND * 60; public final static long HOUR = MINUTE * 60; public final static long DAY = HOUR * 24; /** * 将13位时间戳转为人类可读的字符串形式 * * @param timeValue 将13位时间戳 * @return */ public static String timeForHuman(long timeValue) { long now = System.currentTimeMillis(); long duration = now - timeValue; if (duration <= MINUTE) { return "刚刚"; } else if (duration < HOUR) { return String.format("%d分钟前", (int) (duration / MINUTE)); } else if (duration < DAY) { return String.format("%d小时前", (int) (duration / HOUR)); } else if (duration < DAY * 8) { return String.format("%d天前", (int) (duration / DAY)); } else { SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd"); return formatter.format(new Date(timeValue)); } } }
测试
package com.example; import org.junit.Test; public class TimeUtilTests { @Test public void timeForHuman() { long now = System.currentTimeMillis(); String ret1 = TimeUtil.timeForHuman(now - 3 * TimeUtil.SECOND); System.out.println(ret1); // 刚刚 String ret2 = TimeUtil.timeForHuman(now - 3 * TimeUtil.MINUTE); System.out.println(ret2); // 3分钟前 String ret3 = TimeUtil.timeForHuman(now - 3 * TimeUtil.HOUR); System.out.println(ret3); // 3小时前 String ret4 = TimeUtil.timeForHuman(now - 3 * TimeUtil.DAY); System.out.println(ret4); // 3天前 String ret5 = TimeUtil.timeForHuman(now - 8 * TimeUtil.DAY); System.out.println(ret5); // 2023-02-08 } }
