« [freeip] 清华大学校园网现行免费地址域列表20050928更新 | Main | SuSE Linux Professional 10.0 & SUSE 10.0 OSS (OpenSuSE) Released »
October 7, 2005
c shell perl php下的日期时间转换: 秒数与人类可读日期 scalar localtime 与 seconds since `00:00:00 1970-01-01 UTC'
|
版权声明：可以任意转载，转载时请务必以超链接形式标明文章原始出处和作者信息及本声明。 https://windtear.net/archives/2005/10/07/000791.html http://windtear.net/archives/2005/10/07/000791.html scalar localtime 26-byte string 与 seconds since `00:00:00 1970-01-01 UTC' （1970年1月1日凌晨零点以来的秒数） the number of seconds that have passed since the Epoch: 00:00:00 January 1, 1970, Coordinated Universal Time (UTC). c: 《Advanced Programming in the UNIX Environment: Second Edition》 简称《APUE》 Seciont 6.10 Figure 6.8. Relationship of the various time functions 说的清楚 #include <time.h> time_t time(time_t *calptr); struct tm *localtime(const time_t *calptr); struct tm *gmtime(const time_t *calptr); time_t mktime(struct tm *tmptr); char *asctime(const struct tm *tmptr); char *ctime(const time_t *calptr); size_t strftime(char *restrict buf, size_t maxsize, const char *restrict format, const struct tm *restrict tmptr); shell: % date +%s 1128621784 % date -d "1970-01-01 UTC 1128621784 seconds" Fri Oct 7 02:03:04 CST 2005 perl: % perl -e 'print scalar localtime 1128621784' Fri Oct 7 02:03:04 2005 php: date('Y-m-d H:i:s',time()); |
Posted by windtear at October 7, 2005 2:04 AM
