Line length limit preg_match_all?

Question

PHP

preg_match_all searches for strings using a regular expression, but if the searched string is large, it returns an empty array. What is the maximum number of characters in the search string preg_match_all and how to bypass it?

Answer 1

maybe you have a line break there? so use modifier m
m modifier: multi-line. Causes ^ and $ to match the begin/end of each line (not only begin/end of string)

Answer 2

https://regex101.com/
test..

Answer 3

php.net/pcre.configuration#ini.pcre.backtrack-limit

pcre.backtrack_limit integer
PCRE's backtracking limit. Defaults to 100000 for PHP < 5.3.7.

Answer 4

Maybe this will work:
Will search from zero to five characters
More about this here: regexpstudio.com/ru/TRegExpr/Help/regexp_syntax.html starting with "Metacharacters - repetitions"