php - Regex match string that ends with number

Question

What is a regex to match a string that ends with a number for example

"c1234" - match
"c12" - match
"c" - no match

Tried this but it doesn't work

(?|c(?|[0-9]*$))

Thanks again,

The beggining string needs to be specific too

Answer 1

Just use

d$

to check your string ends with a digit

If you want your string to be a "c" followed by some digits, use

cd+$