regex101: PCRE2 (PHP) Match Workspace

\$the literal $ (36₁₀ / 44₈ / 24₁₆)

Group type(?P<type>(?:v|a|s))?

?repeats the group contents below at most once:

Non-Capturing Group(?:v|a|s)

1st Alternativev

vthe literal v (118₁₀ / 166₈ / 76₁₆) (case insensitive)

2nd Alternativea

athe literal a (97₁₀ / 141₈ / 61₁₆) (case insensitive)

3rd Alternatives

sthe literal s (115₁₀ / 163₈ / 73₁₆) (case insensitive)

1st Alternativelang

langthe literal text lang (case insensitive)

2nd Alternativelang2

lang2the literal text lang2 (case insensitive)

3rd Alternativelang3

lang3the literal text lang3 (case insensitive)

4th Alternativelanguage

languagethe literal text language (case insensitive)

5th Alternativecodec

codecthe literal text codec (case insensitive)

6th Alternativeformat

formatthe literal text format (case insensitive)

7th Alternativech

chthe literal text ch (case insensitive)

8th Alternativechannels

channelsthe literal text channels (case insensitive)

9th Alternativeres

resthe literal text res (case insensitive)

10th Alternativeresolution

resolutionthe literal text resolution (case insensitive)

Non-Capturing Group(?:(?:_(?P<num>\d+))|(?:_(?P<lang>[^_0-9\$\n]+)(?:_(?P<num2>\d+))?))?

?repeats the group contents below at most once:

1st Alternative(?:_(?P<num>\d+))

Non-Capturing Group(?:_(?P<num>\d+))

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

Group num(?P<num>\d+)

\d+a digit, repeated at least once

2nd Alternative(?:_(?P<lang>[^_0-9\$\n]+)(?:_(?P<num2>\d+))?)

Non-Capturing Group(?:_(?P<lang>[^_0-9\$\n]+)(?:_(?P<num2>\d+))?)

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

Group lang(?P<lang>[^_0-9\$\n]+)

Negated Character Class[^_0-9\$\n]+

+matches at least one character outside the set below:

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

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

\$the literal $ (36₁₀ / 44₈ / 24₁₆)

\na line-feed (newline) character (ASCII 10)

Non-Capturing Group(?:_(?P<num2>\d+))?

\$the literal $ (36₁₀ / 44₈ / 24₁₆)

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

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

Search reference

Regular Expression

\$(?P<type>(?:v|a|s))?(?P<prop>(?:lang|lang2|lang3|language|codec|format|ch|channels|res|resolution))(?:(?:_(?P<num>\d+))|(?:_(?P<lang>[^_0-9\$\n]+)(?:_(?P<num2>\d+))?))?\$

Test String
New

$alang$
$alang_0$

$acodec$
$acodec_0$
$acodec_jp$
$acodec_jp_0$

$aformat$
$aformat_0$
$aformat_jp$
$aformat_jp_0$

$ach$
$ach_0$
$ach_jp$
$ach_jp_0$

$achannels$
$achannels_0$
$achannels_jp$
$achannels_jp_0$

$codec$

$res$ $vformat$ $aformat_jp$ $ach_0$

Regular Expressions 101

Regular Expression

Test String
New

Substitution
Processing...

Regular Expression

Test StringNew

SubstitutionProcessing...

Test String
New

Substitution
Processing...