regex101: PCRE2 (PHP) Substitution Workspace

1st Alternative\(\s*/.*?/\w*\h*,(*SKIP)(*F)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\s*any whitespace character, repeated any number of times

/the literal / (47₁₀ / 57₈ / 2F₁₆)

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

/the literal / (47₁₀ / 57₈ / 2F₁₆)

\w*any word character, repeated any number of times

\h*any horizontal whitespace character, repeated any number of times

,the literal , (44₁₀ / 54₈ / 2C₁₆)

(*SKIP)acts like (*PRUNE), but the next unanchored match attempt starts where (*SKIP) was reached instead of at the next subject character

(*F)forces the current match attempt to fail at this position

2nd Alternative(?|(")[^"\\]*(?:\\.[^"\\]*)*"|(')[^'\\]*(?:\\.[^'\\]*)*')

Branch Reset Group(?|(")[^"\\]*(?:\\.[^"\\]*)*"|(')[^'\\]*(?:\\.[^'\\]*)*')

1st Alternative(")[^"\\]*(?:\\.[^"\\]*)*"

Group 1(")

"the literal " (34₁₀ / 42₈ / 22₁₆)

Negated Character Class[^"\\]*

*matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

Non-Capturing Group(?:\\.[^"\\]*)*

*repeats the group contents below any number of times:

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

.any character (except for line terminators)

Negated Character Class[^"\\]*

*matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

"the literal " (34₁₀ / 42₈ / 22₁₆)

2nd Alternative(')[^'\\]*(?:\\.[^'\\]*)*'

Group 1(')

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Negated Character Class[^'\\]*

*matches any number of characters outside the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

Non-Capturing Group(?:\\.[^'\\]*)*

*repeats the group contents below any number of times:

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

.any character (except for line terminators)

Negated Character Class[^'\\]*

*matches any number of characters outside the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Search reference

Regular Expression

\(\s*/.*?/\w*\h*,(*SKIP)(*F)|(?|(")[^"\\]*(?:\\.[^"\\]*)*"|(')[^'\\]*(?:\\.[^'\\]*)*')

New

Test
a="abc";
b='def';
c="That's the way to do it";
d='That\'s the way "to do it"';
e=e.replace(//g, '"');
f=f.replace(/'/g, '"');
g=g.replace(/\'/g, '"');
h=h.replace(/\"/g, '\"');
i=i.replace(/\\"/g, '\\"');

Substitution

$1XXXX$1