regex101: PCRE (Legacy) Match Workspace

Pro

Positive Lookbehind(?<=@func_compare\()

@func_comparethe literal text @func_compare (case sensitive)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Group 1([^()]*$(?:.*?$|(?1))*)

Negated Character Class[^()]*

*matches any number of characters outside the set below:

(the literal ( (40₁₀ / 50₈ / 28₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Non-Capturing Group(?:.*?\)|(?1))*

*repeats the group contents below any number of times:

1st Alternative.*?\)

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

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

2nd Alternative(?1)

(?1)calls group 1 as a subroutine

Negated Character Class[^()]*

*matches any number of characters outside the set below:

(the literal ( (40₁₀ / 50₈ / 28₁₆)

)the literal ) (41₁₀ / 51₈ / 29₁₆)

Positive Lookahead(?=\))

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

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

25 tokens

Regular Expression

(?<=@func_compare\()([^()]*\((?:.*?\)|(?1))*)[^()]*(?=\))

New

@func_compare('string1',@func_test(2),1234),'Y-m-d H:i:s',@func_strtotime({{request.expires_in}} - 300)

@func_compare('str',@func_test('1',@func_test('2')),'str',@func_test('3')) 

@func_compare('str',@func_test('1',@func_test('2')),'str')

Substitution

@func_compare('string1',@func_test(2),1234),'Y-m-d H:i:s',@func_strtotime({{request.expires_in}} - 300)

@func_compare('str',@func_test('1',@func_test('2')),'str',@func_test('3')) 

@func_compare('str',@func_test('1',@func_test('2')),'str')