regex101: [php] url hard match

Group 1((?:(?:https?|ftp)+(?:\:\/\/))?)+

+repeats the group contents below at least once:

Non-Capturing Group(?:(?:https?|ftp)+(?:\:\/\/))?

?repeats the group contents below at most once:

Non-Capturing Group(?:https?|ftp)+

+repeats the group contents below at least once:

1st Alternativehttps?

httpthe literal text http (case insensitive)

s?optionally matches the literal s (115₁₀ / 163₈ / 73₁₆) (case insensitive)

2nd Alternativeftp

ftpthe literal text ftp (case insensitive)

Non-Capturing Group(?:\:\/\/)

\:the literal : (58₁₀ / 72₈ / 3A₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Non-Capturing Group(?:(?:(?:www(?:(?:[\d]{1})?)\.|[a-z0-9-_]{1,}))+\.(?:com|me|ru|net|biz|info|fm|su|ua|to|us|[a-z]{1,5}))+

+repeats the group contents below at least once:

Non-Capturing Group(?:(?:www(?:(?:[\d]{1})?)\.|[a-z0-9-_]{1,}))+

+repeats the group contents below at least once:

Non-Capturing Group(?:www(?:(?:[\d]{1})?)\.|[a-z0-9-_]{1,})

1st Alternativewww(?:(?:[\d]{1})?)\.

wwwthe literal text www (case insensitive)

Non-Capturing Group(?:(?:[\d]{1})?)

Non-Capturing Group(?:[\d]{1})?

?repeats the group contents below at most once:

Character Class[\d]{1}

{1}matches one character from the set below:

\da digit

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

2nd Alternative[a-z0-9-_]{1,}

Character Class[a-z0-9-_]{1,}

{1,}matches at least one character from the set below:

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

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

-the literal - (45₁₀ / 55₈ / 2D₁₆)

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Non-Capturing Group(?:com|me|ru|net|biz|info|fm|su|ua|to|us|[a-z]{1,5})

1st Alternativecom

comthe literal text com (case insensitive)

2nd Alternativeme

methe literal text me (case insensitive)

3rd Alternativeru

ruthe literal text ru (case insensitive)

4th Alternativenet

netthe literal text net (case insensitive)

5th Alternativebiz

bizthe literal text biz (case insensitive)

6th Alternativeinfo

infothe literal text info (case insensitive)

7th Alternativefm

fmthe literal text fm (case insensitive)

8th Alternativesu

suthe literal text su (case insensitive)

9th Alternativeua

uathe literal text ua (case insensitive)

10th Alternativeto

11th Alternativeus

12th Alternative[a-z]{1,5}

Non-Capturing Group(?:(?:[a-z0-9\/\?=-_.&]{1,})?)

Global pattern flags

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

s modifier: single line. Allows a dot to match line terminators

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Search reference

Regular Expression

((?:(?:https?|ftp)+(?:\:\/\/))?)+(?:(?:(?:www(?:(?:[\d]{1})?)\.|[a-z0-9-_]{1,}))+\.(?:com|me|ru|net|biz|info|fm|su|ua|to|us|[a-z]{1,5}))+(?:(?:[a-z0-9\/\?=-_.&]{1,})?)

Unit Tests

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