parse linux crontab & support sec
linux crontab format
¢ php test.php "8 * * * *" 0
'2017-11-14 16:08:45'
array (
1 => 1,
)%
support second
¢ php test.php "*/15 9 * * * *" 0
'2017-11-14 16:09:12'
array (
0 => 0,
15 => 15,
30 => 30,
45 => 45,
)%