Regular Expressions 101

^start of line

Non-Capturing Group(?:$0[0-8]$|0[0-8])

1st Alternative$0[0-8]$

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

Character Class[0-8]

0-8one character from 0 (48₁₀) to 8 (56₁₀)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

2nd Alternative0[0-8]

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

Character Class[0-8]

0-8one character from 0 (48₁₀) to 8 (56₁₀)

Character Class[ ]?

?matches at most one character from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

Character Class[0-9]{4}

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

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

Character Class[ ]?

?matches at most one character from the set below:

the literal (32₁₀ / 40₈ / 20₁₆)

Character Class[0-9]{4}

{4}matches exactly 4 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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

^(?:\(0[0-8]\)|0[0-8])[ ]?[0-9]{4}[ ]?[0-9]{4}$

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02 4345 2334
0243452334
(02)43452334
(02) 4345 2334