preg_match syntax

[dkin]

What is the proper preg_match syntax:
1. to test if there are only numbers (0-9) in a string?
2. to test if there are only a-z and A-Z letters in a string?

Thanks.

[nnichols]

preg_match ("/^[0-9]+$/", $string) this will match any string containing only chars 0-9

preg_match ("/^{[a-zA-z]+$/",} $string) this will match any string containing only chars a-z or A-Z

Hope this helps 😉