Regular Expressions 101

\da digit

Group 1([0-9]{6})

Character Class[0-9]{6}

{6}matches exactly 6 characters from the set below:

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

Group 2([0-9]{0,16})

Character Class[0-9]{0,16}

{0,16}matches between 0 and 16 characters from the set below:

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

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

Character Class[0-9]{4}

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

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

\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.

26 tokens

Regular Expression

\d([0-9]{6})([0-9]{0,16})([0-9]{4})\d

New

Aaaa bbbb aaa=1234567890123456 fdfdfd=aaa
Aaaa bbbb aaa=\"1234567890123456\" fdfdfd=aaa
Aaaa bbbb aaa=5155900762048745 fdfdfd=aaa