Regular Expressions 101

Pro

1st Alternative(?:\+\d{2} )\d{3}\.?\d{3}\.?\d{3}

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

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

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

the literal (32₁₀ / 40₈ / 20₁₆)

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

\.?optionally matches the literal . (46₁₀ / 56₈ / 2E₁₆)

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

\.?optionally matches the literal . (46₁₀ / 56₈ / 2E₁₆)

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

2nd Alternative\d{4}([ .]?)\d{3}\1\d{3}

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

Group 1([ .]?)

Character Class[ .]?

?matches at most one character from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

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

\1the text saved by group 1

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

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

(?:\+\d{2} )\d{3}\.?\d{3}\.?\d{3}|\d{4}([ .]?)\d{3}\1\d{3}

New

+84 934.567.678 
+84 934567678 
0934 567 678 
0934.567.678

+84 934.567.678 
+84 934567678 
0934 567 678 
0934.567.678