Regular expression - Unknown modifier '(' in
2886
Warning: preg_replace(): Unknown modifier
68860
Why this javascript regex doesn't work?
113604
Why does this regex with no special character match a longer string?
130919
Regular expression for letters, numbers and - _
6448
Reference - What does this regex mean?
748
What do 'lazy' and 'greedy' mean in the context of regular expressions?
45334
How can I debug a regular expression in Python?
37188
Difference between '.' , '?' and '*' in regular expressions?
3965
What special characters must be escaped in regular expressions?
10125
How does this regular expression work?
28586
Is the regular expression [a-Z] valid and if yes then is it the same as [a-zA-Z]?
595
Unknown modifier '/' in ...? what is it?
1388
Learning Regular Expressions
20678
Escape string for use in Javascript regex
49341
JavaScript Regex, where to use escape characters?
26682
PHP regular expressions: No ending delimiter '^' found in
10884
Tokenizing Error: java.util.regex.PatternSyntaxException, dangling metacharacter '*'