Regular Expressions 101

Character Class[&?]

&the literal & (38₁₀ / 46₈ / 26₁₆)

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

1st Alternative(?:firstName|lastName|phone1|address|zipcode)=

Non-Capturing Group(?:firstName|lastName|phone1|address|zipcode)

1st AlternativefirstName

firstNamethe literal text firstName (case sensitive)

2nd AlternativelastName

lastNamethe literal text lastName (case sensitive)

3rd Alternativephone1

phone1the literal text phone1 (case sensitive)

4th Alternativeaddress

addressthe literal text address (case sensitive)

5th Alternativezipcode

zipcodethe literal text zipcode (case sensitive)

=the literal = (61₁₀ / 75₈ / 3D₁₆)

2nd Alternativeemail=(?:.*@.*\.)?

email=the literal text email= (case sensitive)

Non-Capturing Group(?:.*@.*\.)?

?repeats the group contents below at most once:

.*any character (except for line terminators), repeated any number of times

@the literal @ (64₁₀ / 100₈ / 40₁₆)

.*any character (except for line terminators), repeated any number of times

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Negated Character Class[^&]*

*matches any number of characters outside the set below:

&the literal & (38₁₀ / 46₈ / 26₁₆)

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

[&?]((?:firstName|lastName|phone1|address|zipcode)=|email=(?:.*@.*\.)?)[^&]*

New

https://example.com/?&iframeLoad=true&firstName=David&lastName=Faber&email=xyzzy?@xyzzy.com&phone1=1234567890&address=myaddress&zipcode=myzip&isAvailableReferral=true&isAvailableDirect=false

Regular Expression

Substitution