PHP and MySQL syntax

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Revision as of 17:39, 18 March 2011 by Planetoid (talk | contribs)
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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'); /* return -744:00:00 */