Regular Expressions 101

Explanation

Pro

^start of line

Non-Capturing Group(?:\+?7|8)?

?repeats the group contents below at most once:

1st Alternative\+?7

\+?optionally matches the literal + (43₁₀ / 53₈ / 2B₁₆)

7the literal 7 (55₁₀ / 67₈ / 37₁₆)

2nd Alternative8

8the literal 8 (56₁₀ / 70₈ / 38₁₆)

Non-Capturing Group(?:[\s\-(_]+)?

?repeats the group contents below at most once:

Character Class[\s\-(_]+

+matches at least one character from the set below:

\sany whitespace character

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

(the literal ( (40₁₀ / 50₈ / 28₁₆)

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

Group 1(\d{3})

\d{3}a digit, repeated exactly 3 times

Non-Capturing Group(?:[\s\-_)]+)?

?repeats the group contents below at most once:

Character Class[\s\-_)]+

+matches at least one character from the set below:

\sany whitespace character

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

Group 2(\d{3})

\d{3}a digit, repeated exactly 3 times

Non-Capturing Group(?:[\s\-_]+)?

?repeats the group contents below at most once:

Character Class[\s\-_]+

+matches at least one character from the set below:

\sany whitespace character

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

Group 3(\d{2})

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

Non-Capturing Group(?:[\s\-_]+)?

?repeats the group contents below at most once:

Character Class[\s\-_]+

+matches at least one character from the set below:

\sany whitespace character

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

Group 4(\d{2})

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

$end of line

Global pattern flags

s modifier: single line. Allows a dot to match line terminators

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

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

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

25 tokens

Regular Expression

^(?:\+?7|8)?(?:[\s\-(_]+)?(\d{3})(?:[\s\-_)]+)?(\d{3})(?:[\s\-_]+)?(\d{2})(?:[\s\-_]+)?(\d{2})$

New

+78005553535
88005553535
8005553535
78005553535
+7(800)555-35-35
+7(800)5553535
+7(800)555 35 35
+7 (800) 555 35 35
+7 (800) 555-35-35
+7-(800)-555-35-35
8 (800) 555 35 35
800 555 35 35
800-555-35-35
8(800)5553535
8(800)555 35 35
8(800) 555-35-35
8-800-555-35-35

Substitution

$1$2$3$4

+78005553535
88005553535
8005553535
78005553535
+7(800)555-35-35
+7(800)5553535
+7(800)555 35 35
+7 (800) 555 35 35
+7 (800) 555-35-35
+7-(800)-555-35-35
8 (800) 555 35 35
800 555 35 35
800-555-35-35
8(800)5553535
8(800)555 35 35
8(800) 555-35-35
8-800-555-35-35