Regular Expressions 101

Explanation

Pro

^start of line

Non-Capturing Group(?:[+]6)?

?repeats the group contents below at most once:

Character Class[+]

+the literal + (43₁₀ / 53₈ / 2B₁₆)

6the literal 6 (54₁₀ / 66₈ / 36₁₆)

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

Group 1(([0-9]{2}((\s[0-9]{3,4}\s[0-9]{4})|(-[0-9]{3,4}\s[0-9]{4})|(-[0-9]{7,8})))|([0-9]{9,10}))

1st Alternative([0-9]{2}((\s[0-9]{3,4}\s[0-9]{4})|(-[0-9]{3,4}\s[0-9]{4})|(-[0-9]{7,8})))

Group 2([0-9]{2}((\s[0-9]{3,4}\s[0-9]{4})|(-[0-9]{3,4}\s[0-9]{4})|(-[0-9]{7,8})))

Character Class[0-9]{2}

{2}matches exactly 2 characters from the set below:

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

Group 3((\s[0-9]{3,4}\s[0-9]{4})|(-[0-9]{3,4}\s[0-9]{4})|(-[0-9]{7,8}))

1st Alternative(\s[0-9]{3,4}\s[0-9]{4})

Group 4(\s[0-9]{3,4}\s[0-9]{4})

\sany whitespace character

Character Class[0-9]{3,4}

{3,4}matches between 3 and 4 characters from the set below:

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

\sany whitespace character

Character Class[0-9]{4}

{4}matches exactly 4 characters from the set below:

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

2nd Alternative(-[0-9]{3,4}\s[0-9]{4})

Group 5(-[0-9]{3,4}\s[0-9]{4})

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[0-9]{3,4}

{3,4}matches between 3 and 4 characters from the set below:

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

\sany whitespace character

Character Class[0-9]{4}

{4}matches exactly 4 characters from the set below:

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

3rd Alternative(-[0-9]{7,8})

Group 6(-[0-9]{7,8})

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[0-9]{7,8}

{7,8}matches between 7 and 8 characters from the set below:

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

2nd Alternative([0-9]{9,10})

Group 7([0-9]{9,10})

Character Class[0-9]{9,10}

{9,10}matches between 9 and 10 characters from the set below:

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

$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

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

25 tokens

Regular Expression

^(?:[+]6)?0(([0-9]{2}((\s[0-9]{3,4}\s[0-9]{4})|(-[0-9]{3,4}\s[0-9]{4})|(-[0-9]{7,8})))|([0-9]{9,10}))$

01234567890
+601234567890

012-34567890
+6012-34567890

012-3456 7890
+6012-3456 7890

012 3456 7890
+6012 3456 7890

#invalid:

0122 3456 7890
12 3456 7890
+60122 3456 7890
012345678900