3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?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"));
Output for 5.6.0 - 7.1.0
int(1373519042) string(19) "2013-07-11 07:04:02" int(1373493600) string(19) "2013-07-11 00:00:00" int(1372629600) int(2)
Output for 4.3.0 - 4.4.9, 5.0.3 - 5.2.17, 5.3.3 - 5.5.38
int(1373519042) string(19) "2013-07-11 07:04:02" int(1373493600) string(19) "2013-07-11 00:00:00" int(1372629600) int(6)
Output for 5.3.0 - 5.3.2
int(1372655042) string(19) "2013-07-01 07:04:02" int(1372629600) string(19) "2013-07-01 00:00:00" int(1372629600) int(6)
Output for 5.0.0 - 5.0.2
int(1373493600) string(19) "2013-07-11 00:00:00" int(1373493600) string(19) "2013-07-11 00:00:00" int(1372629600) int(6)