PHP and MySQL syntax: Difference between revisions
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the human readable time format ex: 2010-12-21 10:05:06 | the human readable time format ex: 2010-12-21 10:05:06 | ||
* php: | * php: | ||
** echo date("y-m-d H:i:s", time() ); // | ** echo date("y-m-d H:i:s", time() ); //return '2010-12-21 10:05:06' | ||
** echo date("y-m-d H:i:s", 1292897201 ); // convert the time stamp 1292897201 to the human readable time format | ** echo date("y-m-d H:i:s", 1292897201 ); // convert the time stamp 1292897201 to the human readable time format | ||
* mysql: SELECT NOW(); /*the human readable current time */ | * mysql: SELECT NOW(); /*the human readable current time */ | ||
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* php: echo time(); | * php: echo time(); | ||
* mysql: SELECT NOW()+0; | * mysql: SELECT NOW()+0; | ||
convert human-readable time to timestamp | |||
* php: | |||
* mysql: select UNIX_TIMESTAMP('2011-03-15 18:53:57'); /* return timestamp: 1300186437 */ | |||
time difference of two time values | time difference of two time values | ||
Revision as of 16:59, 18 March 2011
the human readable time format ex: 2010-12-21 10:05:06
- php:
- echo date("y-m-d H:i:s", time() ); //return '2010-12-21 10:05:06'
- echo date("y-m-d H:i:s", 1292897201 ); // convert the time stamp 1292897201 to the human readable time format
- mysql: SELECT NOW(); /*the human readable current time */
the current timestamp ex: 1292897201
- php: echo time();
- mysql: SELECT NOW()+0;
convert human-readable time to timestamp
- php:
- mysql: select UNIX_TIMESTAMP('2011-03-15 18:53:57'); /* return timestamp: 1300186437 */
time difference of two time values
- php: using mktime() function
- mysql: SELECT TIMEDIFF('2010:01:01 00:00:00', '2010:02:01 00:00:00');