preg_match with numbers

Trying to have preg_match for validating input from users.

One that validates numbers 0 till example 9999 and one that validates numbers 1 till example 9999

preg_match('/^{[0-9]{1,}$/',} $value)
preg_match('/^{[1-9]{1,}$/',} $value)

This worked fine, until I noticed that a number like 113 doesn't work
anyone and idea ? (yeah I know, total noob with regular expressions 🙂

It may be easier to just use PHP, e.g.,

if ($value >= 0 && $value <= 9999)

Yeah I know, but with reg expr. should also work

preg_match('/^\d/', $value) worked also, however then I have the problem that you can also use a 0

Terminator wrote:
Yeah I know, but with reg expr. should also work

That is true. However, I tested both your attempts against '113' and they both accepted it, so I am afraid that I cannot duplicate the problem.

What I can say is that the second one is flawed because it does not allow 0s at all, and yet allows numbers beyond 9999. It should be:

preg_match('/^[1-9]\d{0,3}$/', $value)

EDIT:

Terminator wrote:
preg_match('/^\d/', $value) worked also, however then I have the problem that you can also use a 0

To prevent leading 0s when matching in the range [0, 9999]:

preg_match('/^(0|[1-9]\d{0,3})$/', $value)