Regular Expressions 101

^start of string

Non-Capturing Group(?:(?:\d{4}) (?:\d{3}) (?:\d{3})|(?:\d{2}) (?:\d{2}) (?:\d{2})|(?:\d{2}) (?:\d{4}) (?:\d{4})|(?:\d{4}) (?:\d{4}))

1st Alternative(?:\d{4}) (?:\d{3}) (?:\d{3})

Non-Capturing Group(?:\d{4})

\d{4}a digit, repeated exactly 4 times

the literal (32₁₀ / 40₈ / 20₁₆)

Non-Capturing Group(?:\d{3})

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

the literal (32₁₀ / 40₈ / 20₁₆)

Non-Capturing Group(?:\d{3})

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

2nd Alternative(?:\d{2}) (?:\d{2}) (?:\d{2})

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

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

the literal (32₁₀ / 40₈ / 20₁₆)

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

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

the literal (32₁₀ / 40₈ / 20₁₆)

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

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

3rd Alternative(?:\d{2}) (?:\d{4}) (?:\d{4})

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

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

the literal (32₁₀ / 40₈ / 20₁₆)

Non-Capturing Group(?:\d{4})

\d{4}a digit, repeated exactly 4 times

the literal (32₁₀ / 40₈ / 20₁₆)

Non-Capturing Group(?:\d{4})

\d{4}a digit, repeated exactly 4 times

4th Alternative(?:\d{4}) (?:\d{4})

Non-Capturing Group(?:\d{4})

\d{4}a digit, repeated exactly 4 times

the literal (32₁₀ / 40₈ / 20₁₆)

Non-Capturing Group(?:\d{4})

\d{4}a digit, repeated exactly 4 times

$end of string

Global pattern flags

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

^(?:(?:\d{4}) (?:\d{3}) (?:\d{3})|(?:\d{2}) (?:\d{2}) (?:\d{2})|(?:\d{2}) (?:\d{4}) (?:\d{4})|(?:\d{4}) (?:\d{4}))$

New

02 1234 5678
0412 345 678
1800 123 456
1300 123 456
13 12 34
1900 123 456
1902 123 456
1234 5678

02 25 45

Substitution