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<?php var_dump(strtotime('first day')); var_dump(date('Y-m-d H:i:s', strtotime('first day'))); var_dump(strtotime('first day 00:00:00')); var_dump(date('Y-m-d H:i:s', strtotime('first day 00:00:00'))); var_dump(strtotime(date('Y-m-01 00:00:00'))); var_dump(mb_strlen("高考")); var_dump(strtotime(date("Y-m-d 00:00:00", time())) - 86400* 6); var_dump(strtotime('-7 day 00:00:00')); var_dump(strtotime(date("Y-m-d 00:00:00", time())) - 86400 * 0); var_dump(strtotime('+0 day 00:00:00'));
Output for 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.7
int(1421529126) string(19) "2015-01-17 22:12:06" int(1421449200) string(19) "2015-01-17 00:00:00" int(1420066800) int(2) int(1420844400) int(1420758000) int(1421362800) int(1421362800)
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.3 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.3 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38
int(1421529126) string(19) "2015-01-17 22:12:06" int(1421449200) string(19) "2015-01-17 00:00:00" int(1420066800) int(6) int(1420844400) int(1420758000) int(1421362800) int(1421362800)
Output for 5.3.0 - 5.3.2
int(1420146726) string(19) "2015-01-01 22:12:06" int(1420066800) string(19) "2015-01-01 00:00:00" int(1420066800) int(6) int(1420844400) int(1420758000) int(1421362800) int(1421362800)
Output for 5.0.0 - 5.0.2
int(1421449200) string(19) "2015-01-17 00:00:00" int(1421449200) string(19) "2015-01-17 00:00:00" int(1420066800) int(6) int(1420844400) int(1420758000) int(1421362800) int(1421362800)

preferences:
157.63 ms | 402 KiB | 215 Q