I am using laravel validation. I want to take input and store data like this.
111-111-111. This is the demo value. There should be 3 number in each part.
Here is my validation rule
'id' => 'required|regex:/[0-9]{3}-[0-9]{3}-[0-9]{3}/|unique:info',
First two part working perfect but in last part I can take more than 3 number. I mean if input is 111-111-11111 it take the input.
That is normal. You need to think about regex like a search engine. With your rule, you actually say:
Is there a string that has 3 numbers and then a hyphen (-)
3 numbers and then a hyphen (-)
3 numbers
So this is true:
123-112-111
But also this is true:
111-111-111111111
145-156-1155
123-456-87897
Because all of them have the 3 numbers and hyphen, 3 numbers and hyphen, 3 numbers and hyphen!
You need to limit your input differently. Maybe with another rule in controller, for example:
'id' => 'required|regex:/[0-9]{3}-[0-9]{3}-[0-9]{3}/|max:11|unique:info',
This was just a basic example, I am sure you can figure out something even better.
Also check this website: https://regexr.com/
This is actually the best solution for your problem:
/[0-9]{3}-[0-9]{3}-[0-9]{3}$/
With $ at the end of your regex you say:
This is the end of my string, don't accept the input if user writes more than 3 characters after second hyphen.
controller that word matches also all the words that have controller inside. So UsersController is a match, ItemsController is a match... Same thing with your regex rule. It matches no mather how many numbers you write at the end.