Regular Expressions 101

Positive Lookbehind(?<=[?&]tab_id=)

Character Class[?&]

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

&the literal & (38₁₀ / 46₈ / 26₁₆)

tab_id=the literal text tab_id= (case sensitive)

Negated Character Class[^&]+

+matches at least one character outside the set below:

&the literal & (38₁₀ / 46₈ / 26₁₆)

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

(?<=[?&]tab_id=)[^&]+

New

https://some-domain/auth/authenticate?auth=1c4cf948-0867-488d-8596&client_id=account&tab_id=0p-SoVza1Sw