What would this regex match?

Question

Hi any idea what this is matching thanks

preg_match('/^[1-8](0|5)$/', $myValue)

Answer 1

Beginning of string, digit from 1-8, capturing group matching either 0 or 5, end of string.

Answer 2

• Start of string
• A digit between 1 and 8
• Either a digit 0 or 5
• End of string

Answer 3

This might be useful to you, enter the regular expression and view for yourself:

http://strfriend.com/

The site will depict what a given regular expression will match

Answer 4

It matches an occurrence of 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, or 85 (with a trailing newline character \n if one is present).