Validate regex 24h plus null not working in Laravel

Question

I'm using this to validate a 24h time format:

'start_time' => ['regex:/^(([01]?[0-9]|2[0-3]):[0-5][0-9])|null/'],

But Laravel doesn't like it and return as not validated

I've tested the code on https://regex101.com/ and it's working correctly, am I missing something? The problem is with the null, because if I take it out, then the hour validator is fine, but not the null

BTW start_time is empty and Laravel convert it into null

Could you post examples of inputs that gives correct output and the ones that does not? — mrzasa, Mar 05 '18 at 15:38
Don't use a regex for that. Use `date_format` and if it doesn't suffice build a custom function to deal with edge cases. — Casimir et Hippolyte, Mar 05 '18 at 15:41
not sure why is duplicated, but well. Answering the other question, 12:04 works good, leaving the input empty drops — TrOnNe, Mar 05 '18 at 15:43
Correct, and that is what I'm doing, using the array for that.. — TrOnNe, Mar 05 '18 at 15:46

score 2 · Answer 1 · answered Mar 05 '18 at 15:40

2

Just use laravels date format function

'start_time' => 'nullable|date_format:H:i',

Docs

answered Mar 05 '18 at 15:40

rchatburn

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Thanks, the problem here is that sometimes the user enters 00:00 AM, so with date_format:H:i I can't validate that, that's why I'm using regex – TrOnNe Mar 05 '18 at 15:45
00:00 will pass, and in 24 hour there is no 00:00 AM only 00:00 – rchatburn Mar 05 '18 at 15:48

Validate regex 24h plus null not working in Laravel

1 Answers1