PHP Regex "Unknown modifier p"
595
Unknown modifier '/' in ...? what is it?
141606
How can I recognize an evil regex?
61907
Right way to escape backslash [ \ ] in PHP regex?
1685
Why does this Java regex cause "illegal escape character" errors?
28966
Is gcc 4.8 or earlier buggy about regular expressions?
6448
Reference - What does this regex mean?
101511
Is there a PHP function that can escape regex patterns before they are applied?
114716
PHP replaces spaces with underscores
40294
Matching Unicode letter characters in PCRE/PHP
120603
Is there a way to precompile a regex in Perl?
33065
Java equivalent to PHP's preg_replace_callback
136156
Regular expression works on regex101.com, but not on prod
99488
preg_replace() [function.preg-replace]: Unknown modifier '/' in /home/
73420
PHP preg_match (.*) not matching past line breaks
17498
PHP parse/syntax errors; and how to solve them
113604
Why does this regex with no special character match a longer string?
9559
Replace preg_replace() e modifier with preg_replace_callback