Regular Expressions 101

Explanation

Pro

Non-Capturing Group(?:\+1|1)?

?repeats the group contents below at most once:

1st Alternative\+1

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

2nd Alternative1

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

Group 1((?:(?:[2-9]\d{2})?(?:[2-9]\d{6}))|(?:[2-9]11))

1st Alternative(?:(?:[2-9]\d{2})?(?:[2-9]\d{6}))

Non-Capturing Group(?:(?:[2-9]\d{2})?(?:[2-9]\d{6}))

Non-Capturing Group(?:[2-9]\d{2})?

?repeats the group contents below at most once:

Character Class[2-9]

2-9one character from 2 (50₁₀) to 9 (57₁₀)

\d{2}a digit, repeated exactly 2 times

Non-Capturing Group(?:[2-9]\d{6})

Character Class[2-9]

2-9one character from 2 (50₁₀) to 9 (57₁₀)

\d{6}a digit, repeated exactly 6 times

2nd Alternative(?:[2-9]11)

Non-Capturing Group(?:[2-9]11)

Character Class[2-9]

2-9one character from 2 (50₁₀) to 9 (57₁₀)

11the literal text 11

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

25 tokens

(?:\+1|1)?((?:(?:[2-9]\d{2})?(?:[2-9]\d{6}))|(?:[2-9]11))

New

411
911
5551212
15551212
2125551212
12125551212
+12125551212

411
911
5551212
15551212
2125551212
12125551212
+12125551212