Regular Expressions 101

Group 1(gclid|utm_[a-z]+)

1st Alternativegclid

gclidthe literal text gclid (case sensitive)

2nd Alternativeutm_[a-z]+

utm_the literal text utm_ (case sensitive)

Character Class[a-z]+

+matches at least one character from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

=the literal = (61₁₀ / 75₈ / 3D₁₆)

Character Class[-_A-z0-9+()%.]+

+matches at least one character from the set below:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

A-zone character from A (65₁₀) to z (122₁₀) (case sensitive)

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

+the literal + (43₁₀ / 53₈ / 2B₁₆)

(the literal ( (40₁₀ / 50₈ / 28₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

%the literal % (37₁₀ / 45₈ / 25₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

&?optionally matches 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

(gclid|utm_[a-z]+)=[-_A-z0-9+()%.]+&?

Test String
New

"http://wearychef.com/chicken-spaghetti-casserole/?utm_source=MadMimi&utm_medium=email&utm_content=7+Easy+Dinner+Recipes+Featuring+Chicken+Spaghetti+Casserole+(PLUS+A+Call+For+Feedback)&utm_campaign=20150620_m126272097_06202015+chicken+spaghetti+and+menu+126&utm_term=Chicken+Spaghetti+Casserole"

Regular Expression

Test StringNew

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Test String
New

Extraction
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