Regular Expressions 101

^start of line

Group 1(([+]{0,2}?)?([+]{0,2}?)?([0-9 ]+)?)

Group 2([+]{0,2}?)?

?repeats the group contents below at most once:

Character Class[+]{0,2}?

{0,2}?matches between 0 and 2 characters from the set below:

+the literal + (43₁₀ / 53₈ / 2B₁₆)

Group 3([+]{0,2}?)?

?repeats the group contents below at most once:

Character Class[+]{0,2}?

{0,2}?matches between 0 and 2 characters from the set below:

+the literal + (43₁₀ / 53₈ / 2B₁₆)

Group 4([0-9 ]+)?

?repeats the group contents below at most once:

Character Class[0-9 ]+

+matches at least one character from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

the literal (32₁₀ / 40₈ / 20₁₆)

$end of line

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

Regular Expression

^(([+]{0,2}?)?([+]{0,2}?)?([0-9 ]+)?)$

New

508 736 756
505050505
+48 505 505 505
(+48) 505 505 505
++48 505 505 505
(++48) 505 505 505
(23)692 36 99
23 692 36 99