I am using following regex to validate date in format dd/mm/yyyy in php:
preg_match("/([0-9]{2})\/([0-9]{2})\/([0-9]{4})/", $e_startdate, $matches)
But what will be the regex to validate time in the format 10:20 PM or AM. I want a regex which will validate following format for me.
<number><number><colon><number><number><space><AM or PM>
Thanks
You can use the regex:
(0[0-9]|1[0-2]):[0-5][0-9] [AP]M
1:23 AM' and this would accept '00:00 AM' or '00:49 PM' which are illegal. (0[1-9]|[1-9]|1[0-2]):[0-5][0-9] [AP]M` should work for those.
(0[0-9]|1[0-2]) what it means, if you can explain. Thanks!
0[0-9] or 1[0-2]. 0[0-9] means 0 followed by any digit. and 1[0-2] means 1 followed by 0 or 1 or 2.
11:42 AM, since 1 is not allowed as the first digit.1[0-2] will fail?The following should validate the format you requested:
preg_match("/(\d{2}):(\d{2}) (AM|PM)/", $e_startdate, $matches);
Note that this is not necessarily a valid time. You could enter stuff like 32:62 AM. You need something like this for time validation:
preg_match("/(0?\d|1[0-2]):(0\d|[0-5]\d) (AM|PM)/i", $e_startdate, $matches);
Mind to match the whole thing case-insensitive (like i did in the second example). Otherwise lowercase am, pm, etc. are not going to work.
/(0?\d|11|12):(0\d|[0-5]\d) (AM|PM)/i this will only accept 12 hours format right?$matches variable? I need HH MM and AM|PM as separate array element in $matches variable?11:51 AM results in array(0 => '11', 1 => '51', 2 => 'AM').10 was missing for the hours part). Be sure to use the latest version!Regular Expression:
(([0-1][0-9])|([2][0-3])):([0-5][0-9]):([0-5][0-9])
Validates time in MySQL time format. 24 hour time colon separated hours:minutes:seconds hh:mm:ss
Matches: 09:30:00 | 17:45:20 | 23:59:59
Non-Matches: 24:00:00
/\d{2}:\d{2} (AM|PM)/
I started with elusive's answer, but needed a bit more flexibility. This one makes the minutes optional, as well as the space before AM/PM
/(0?\d|1[0-2])(:(0\d|[0-5]\d))?[ ]?(A|P)M/i
