php - Match a given sequence only if not between quotes, taking escaped quotes into consideration -


i use below regular expression match given character sequence if not surrounded quotes - is, if followed number of quotes (using positive lookahead) until end of string.

say want match word section if not between quotes:

\bsection\b(?=[^"]*(?:"[^"]*"[^"]*)*$)

working example on regexr

how extend take escaped quotes consideration? is, if insert \" between quotes in linked example, results stay same.

using pcre skip quoted stuff:

(?s)".*?(?<!\\)"(*skip)(*f)|\bsection\b

in string regex pattern have triple-escape backslash, \\\\ match literal backslash in lookbehind. or in single quoted pattern double escaping sufficient case.

$pattern = '/".*?(?<!\\\)"(*skip)(*f)|\bsection\b/s';

see test @ regex101.


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