Regular Expressions 101

Character Class[(\d]

(the literal ( (40₁₀ / 50₈ / 28₁₆)

\da digit

Non-Capturing Group(?:(?!\h{2,})[-\d()\h])*

*repeats the group contents below any number of times:

Negative Lookahead(?!\h{2,})

\h{2,}any horizontal whitespace character, repeated at least 2 times

Character Class[-\d()\h]

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\da digit

(the literal ( (40₁₀ / 50₈ / 28₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

\hany horizontal whitespace character

\da digit

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](?:(?!\h{2,})[-\d()\h])*\d

New

555-555-5555   (555)555-5555    (555) 555-5555

However, if there's an extra space inside the string it does not find the phone. 555 -555-5555   (555)555- 5555    (555) 555 -5555

Regular Expression

Extraction