Question

Could you please help me to provide a RegEx pattern to validate a string which satisfy:

1. length from 4 to 10 (strictly)
2. first 3 characters must be string (A-Z a-z)
3. the remain characters must be number without 00 as prefix, I mean ABC15 is passed but ABC0015 is not.

This problem took me so much time and I have tried so many regex patterns, but I still have no solution for it.
Thank you so much.

Answer 1

Use this one:

/^[a-z]{3}(?!00)\d{1,7}$/i

Explanation:

/
^         Start
[a-z]{3}  Three letters.
(?!00)    Must NOT be followed by two zeros.
\d{1,7}   One to seven digits.
$         End.
/i        ignore case flag.